Once the king of India fell ill and sent for his doctor. The doctor came, examined him and said, "You will be well again in a few days if you take bull's milk." The king was very surprised, for he had never heard of a bull that gave milk, "How is it possible?" he asked."Order Gulbo, the scholar, to get it for you. He can do anything." The doctor was an enemy to Gulbo, this would be 46.According to the doctor in the story, the king's illness can be cured by ____. A.making Gulbo suffer B.drinking bull's milk C.seeing another doctor D.feeding him with cow's milk