Jane goodall feels animal-rights activists are incorrect when they say 1. researchers often display a cold, indifferent attitude toward animals 2. most research animals have feelings and needs 3.animal research does not advance medical knowledge and treatment 4.animals deserve to be treated as we would treat human beings

Why would a letter from the author support his argument better than an essay? o a. it can be less threatening to a reader and more personal. o b. it can let the author give lots of factual data to support his argument. o c. it can give the author a chance to make mistakes. o d. it can allow the audience to read it many times.