In many countries today, laws protect wildlife. In India, the need for such protection was realized centuries ago. About 300 B.C. an Indian writer described forest that were somewhat like national parks today. The killing of game beasts was carefully supervised . Some animals were fully protected.Within the forest, nobody was allowed to cut timber(wood for building), burn wood for charcoal , or catch animals for their furs. Animals that became dangerous to human visitors were caught or killed outside the park so that other animals would not become uneasy. The need for wildlife protection is greater now than ever before. About a thousand species of animals are in danger of _ , and the rate of extinction was about one species every fifty years from A.D. 1 to 1800, but now it is about one species every year. Everywhere, men are trying to solve the problem of protecting wildlife caring for the rapid growth of the world's population. Dangerous animals were caught or killed outside the park so as to   _  .
keep human visitors safe free the rest of the animals from worry or fear both A and B supply other animals with more food
Question: In many countries today, laws protect wildlife. In India, the need for such protection was realized centuries ago. About 300 B.C. an Indian writer described forest that were somewhat like national parks today. The killing of game beasts was carefully supervised . Some animals were fully protected.Within the forest, nobody was allowed to cut timber(wood for building), burn wood for charcoal , or catch animals for their furs. Animals that became dangerous to human visitors were caught or killed outside the park so that other animals would not become uneasy. The need for wildlife protection is greater now than ever before. About a thousand species of animals are in danger of _ , and the rate of extinction was about one species every fifty years from A.D. 1 to 1800, but now it is about one species every year. Everywhere, men are trying to solve the problem of protecting wildlife caring for the rapid growth of the world's population. Dangerous animals were caught or killed outside the park so as to   _  .
A. keep human visitors safe
B. free the rest of the animals from worry or fear
C. both A and B
D. supply other animals with more food
Answer: