37.The word “plunge” in line 20 is closest in meaning to (A) drop (B) extend (C) melt (D) drift

43. In mentioning “natural leaders” in lines 8-9, the author is making the point that (A) few people qualify as “natural leaders” (B) there is no proof that “natural leaders” exist (C) “natural leaders’ are easily accepted by the members of a social group (D) “natural leaders” share a similar set of characterisitics