根据短文内容的理解，选择一个最佳答案, 回答问题。
(A)
Li Hong is a middle school student. She is a Young Pioneer. Liu Ying is in her class. She is a Young Pioneer, too. They go to school at seven every day. They don't go by bus. They have most of their classes in the morning. On Tuesday afternoon, they have two hours of sports. School is over at four in the afternoon. They do their homework at home. Sometimes they like to play football or watch TV after school.
On Saturday afternoon they go to an old woman's house. She is about seventy. The two girls clean her room and carry water for her. They also buy things for her. They give the old woman a lot of help.
