31. According to Professor Martin Wiseman from the World Cancer Research Fund, a third of all types of cancer could be prevented by changes in diet and lifestyle. He believes that growing waistlines, binge-drinking, lack of exercise and poor diet are fuelling cancer. What is true?
A. cancer is caused by changes in diet.
B. lack of exercise results in a poor diet
C. diet and lifestyle change can curb cancer
D. binge-drinking is resulting in growing waistlines