单选题 Why did Ruby start painting according to Dick George?

A、 Because she was seven years old.
B、 Because she was the first to come to the zoo.
C、 Because she learned a lot from the goat and the chickens.
D、 Because she had no elephant partners to play with.

【正确答案】 D

【答案解析】[注释] 本题的依据句是第二段中的两个句子She lived with a goat and some chickens， but she didn't have an elephant companion for a number of years． She spent a lot of time drawing in the dirt with a stick to make her days more stimulating．其他选择项的内容要么是无关信息，要么和所提问题不属于因果关系。