Dogs and cats are not for students who live in the dormitory. Just think about the noise, the smell and all that wild behavior--chewing on whatever they can get their teeth on, or knocking over the trash can. But don't feel sad. There are smaller and less destructive pets to make your dormitory life colorful. Betta fish They make great pets with their big personality and astonishing colors, ranging from bright red, dark blue to lemon yellow. Unlike many fish, most bettas react to their owner's presence and become more active when they are nearby, which is unusual in the fish world. Chinchillas Without bad smell, about the size of a rabbit and with fur so dense that they can't get pests such as fleas , the friendly creature originally from the Andes Mountains in South America makes an ideal indoor pet. Chinchillas are very social animals, so if you only have one, you will become its family. In cold winter days, in a glance at this fury pet in a dorm will bring you a lot of warmth. Land hermit crabs In a society where owners are often asked "Are they tasty?", land hermit crabs are among the most unlucky animals commonly kept as pets. But they are easy to care for, inexpensive and fascinating to watch. And the fact that they don't cause any allergic reactions makes them perfect for college dormitories. Red-eared sliders If you're interested in a lifelong friend, a red-eared slider makes a wonderful pet. If well cared for, they can live for around 40 years. But there are a couple of things you should know. Red-eared can grow to an adult size of up to 30cm! So you may need a larger tank quickly. In addition, you will need to provide UV lighting, water heater, and a swimming area and a basking   area. Housing a red eared slider is not easy. The text is mainly to   _  .
introduce the best way to keep pets offer useful tips for choosing pets inform students of lifestyle of pets recommend some dormitory pets
Question: Dogs and cats are not for students who live in the dormitory. Just think about the noise, the smell and all that wild behavior--chewing on whatever they can get their teeth on, or knocking over the trash can. But don't feel sad. There are smaller and less destructive pets to make your dormitory life colorful. Betta fish They make great pets with their big personality and astonishing colors, ranging from bright red, dark blue to lemon yellow. Unlike many fish, most bettas react to their owner's presence and become more active when they are nearby, which is unusual in the fish world. Chinchillas Without bad smell, about the size of a rabbit and with fur so dense that they can't get pests such as fleas , the friendly creature originally from the Andes Mountains in South America makes an ideal indoor pet. Chinchillas are very social animals, so if you only have one, you will become its family. In cold winter days, in a glance at this fury pet in a dorm will bring you a lot of warmth. Land hermit crabs In a society where owners are often asked "Are they tasty?", land hermit crabs are among the most unlucky animals commonly kept as pets. But they are easy to care for, inexpensive and fascinating to watch. And the fact that they don't cause any allergic reactions makes them perfect for college dormitories. Red-eared sliders If you're interested in a lifelong friend, a red-eared slider makes a wonderful pet. If well cared for, they can live for around 40 years. But there are a couple of things you should know. Red-eared can grow to an adult size of up to 30cm! So you may need a larger tank quickly. In addition, you will need to provide UV lighting, water heater, and a swimming area and a basking   area. Housing a red eared slider is not easy. The text is mainly to   _  .
A. introduce the best way to keep pets
B. offer useful tips for choosing pets
C. inform students of lifestyle of pets
D. recommend some dormitory pets
Answer: