Last July, my 12-year-old car died on California's Santa Freeway.It was an hour before sunset, and I was 25 miles from home.I couldn't reach anyone to pick me up, so I decided to take a bus.Not knowing the routes, I thought I should just go east. A bus stopped.I got on and asked the driver how far she was going."Ten more miles,"she said.There was another bus I could take from here.This clearly was going to be a long night. I got off at the end of the route and she told me which bus to look for.After waiting 30 minutes, I began to think about a very expensive taxi ride home.Then a bus came up.There was no light number above its windshield .It was out of service, but the door opened.It was the same driver."I just can't leave you here,"she said."This isn't the nicest place.I will give you a ride home." "You will drive me home on the bus?"I asked, astonished. "No, I will take you in my car, "she said. "It's a long way, "I insisted. "Come on, " she said."I have nothing else to do." As we drove from, the station in the car, she began telling me a story.A few days earlier, her brother had run out of gas.A good man picked him up, took him to a service station and then back to his car."I'm just passing the favour on,"she said. When I offered her money as a thank-you, she wouldn't accept."Just do something nice for somebody.Pass it on."she said. The bus driver drove the writer home later because   _  .
she happened to go in the same direction she wanted to do something good for other people her brother told her to do so she wanted to earn more money
Question: Last July, my 12-year-old car died on California's Santa Freeway.It was an hour before sunset, and I was 25 miles from home.I couldn't reach anyone to pick me up, so I decided to take a bus.Not knowing the routes, I thought I should just go east. A bus stopped.I got on and asked the driver how far she was going."Ten more miles,"she said.There was another bus I could take from here.This clearly was going to be a long night. I got off at the end of the route and she told me which bus to look for.After waiting 30 minutes, I began to think about a very expensive taxi ride home.Then a bus came up.There was no light number above its windshield .It was out of service, but the door opened.It was the same driver."I just can't leave you here,"she said."This isn't the nicest place.I will give you a ride home." "You will drive me home on the bus?"I asked, astonished. "No, I will take you in my car, "she said. "It's a long way, "I insisted. "Come on, " she said."I have nothing else to do." As we drove from, the station in the car, she began telling me a story.A few days earlier, her brother had run out of gas.A good man picked him up, took him to a service station and then back to his car."I'm just passing the favour on,"she said. When I offered her money as a thank-you, she wouldn't accept."Just do something nice for somebody.Pass it on."she said. The bus driver drove the writer home later because   _  .
A. she happened to go in the same direction
B. she wanted to do something good for other people
C. her brother told her to do so
D. she wanted to earn more money
Answer: