Choose the best topic sentence from the group below by writing A, B, C or D. A. Mental symptoms of stress include anxiety, trouble sleeping and so on. B. Symptoms of stress can vary widely from one person to the next. C. Some people may have headache

Choose the best topic sentence from the group below by writing A, B, C or D. A. Mental symptoms of stress include anxiety, trouble sleeping and so on. B. Symptoms of stress can vary widely from one person to the next. C. Some people may have headaches or back pain when they are under stress. D. Mental symptoms of stress can be controlled through drug therapy. Answer ：__________

B