阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。
Every morning, Claire Buckley was rushing to catch the bus. She left for Barrington High School in Illinois at 6 a.m.. She would come home very tired. Kids like Clair Buckley are suffering from lack of sleep. Less sleep causes stress. Stress is when someone is under a lot of pressure. Not sleeping is just one reason experts say more students feel nervous at school. Local schools in Illinois are trying new way to fix it, wishing kids to feel healthy and happy.
Some schools are changing their calendar(日历). They are giving tests before school breaks. This way students do not have to worry about studying when they are away from school. Some places changed their after-school activities. Coaches can only organize one practice a day. Teachers now cannot give homework during certain holiday breaks. But some kids want very much to do well on tests. They think it will get them into good colleges, which causes them stress.
A study showed different things stress different students out. Students were not able to see their grades online. This stress some students. Other students said seeing their grades made them more stressed. Some say parents are causing stress. They try to make their kids do not fail. They want their kids to not be disappointed. Children need to fail, says Dr. Carol Weitzman, a doctor for children. When kids learn to fail, they learn to get back on their feet. This is an important skills for life, she says.
Various ways are adopted to reduce stress. Students at John Hersey High School drop by Dr. Brigette Muck's office looking for stress relief. She has aromatherapy (芳香疗法) products. The smells make you fell relaxed. She also has stress balls and coloring books to help work out nervous feelings. Other schools use mentorship(导师制) program, sports and yoga classes to help students feel better.
