Questions 1 to 5 are based on an interview. At the end of the interview you will be given 10 seconds to answer each of the following five questions. Now listen to the interview. Why cholesterol levels in people are higher in winters
A. Because there is not enough vitamin D in the body. B. Because people don’t exercise enough in winters. C. Because the temperature is lower in winters. D. Because people do not receive enough sunshine during winters.