One is always in the position of having to decide between amputation and gangrene. Amputation is swift but time may prove that the amputation was not necessary — or one may delay the amputation too long. Gangrene is slow, but it is impossible to be sure that one is reading one's symptoms right. The idea of going through life as a cripple is more than one can bear, and equally unbearable is the risk of swelling up slowly, in agony, with poison. Which sentence best explains how the use of metaphor in the excerpt supports Baldwin's purpose? A. It uses a description of hatred that appeals to the senses and helps readers better understand its usefulness. B. It shows the evil of hatred by comparing its elimination to a choice between two equally dangerous choices. C. It reveals the best method for eradicating hatred by comparing the results of two types of medical procedures. D. It links hatred and a medical procedure to show that hatred should be surgically removed from society.