The answer is A. Although Vladimir Nabokov studies zoology during his first term, he eventually shifts to French and Russian literature in Cambridge. He graduates in this field with first-class honors and continues to write poems in Russian and English.
David walker address his pamphlet to the world because, he was drawing a huge audience and he was uniting them for racial equality around the world. If he would have address his pamphlet to the united states,only, he wouldn't have drew a big audience.
True. Low voices keep people calm. Well, calm-er than they are.