"TO HAVE A FAST CAR, YOU NEED BOTH A GOOD ENGINE AND FUEL

58. The remark: "To have a fast car, you need both a good engine and fuel." in the passage means that in order to become a genius________________. A. you need intelligence and you need to develop it B. you should try to move quickly and efficiently C. you need to have good health and good nourishment D. you must nourish your brain and train your muscles hard