根据短文内容，选择最佳答案。
Here are some students' schedules.
Peter gets up at 6：00 am. After that, he brushes his teeth and takes a shower, and then he has breakfast. At 7：30 am. he takes the school bus to school. It takes him about 10 minutes. He gets home at 4：20 p.m. and does his homework at about 4：30 p.m.
Cindy gets up at 7：00 a. m. Then she brushes her teeth and takes a shower. After a quick breakfast, she goes to school by subway at 7 ：30 a.m. It takes her about twenty minutes. She gets home at about 4：45 p.m.
Li Yang gets up at 6：45 am. After breakfast, he walks to school from 7：20 am. to 7：40 am. After school he often plays soccer with his friends. He usually does his homework at 7：30 p.m. He doesn't watch TV. He goes to bed at 9：30 p.m.
Han Mei gets up at 6：15 am. Then she takes a shower. At 7：00 a.m., she has breakfast.After that, she takes a boat to school. It takes her half an hour to get to school. At 4：30 p.m., she gets home. Then she does her homework, has dinner and watches TV. She goes to bed at 9：00 p.m.
与直线
平行，则
的值为（ ）