The correct answer should be A. Whomever.
This is because this can be paraphrased as "the instructor has picked him" not "the instructor has picked he". Him corresponds to whomever while he corresponds to whoever.
In 1647 by law. In the United states
Ethos - credibility/ethics
Pathos- emotions
Logos- logic/facts/reasoning
Either a cake nor cookies are to be served
Because Twain's writing is very inspiring and encouraging
