13. In a telephone interview, Dr. Dean Ornish said: "It's an exciting finding because so often people say, 'Oh, it's all in my genes, what can I do?' Well, it turns out you may be able to do a lot." What does Ornish actually mean? (A) One's physique is genetic coded. (B) Finding that radiation or hormone therapy works well for treating prostate cancer is exciting. (C) Having a surgery is the only way to cure prostate cancer. (D) A healthy lifestyle can alter your genes.