SAT Vocab Builder

Answer: Choice (B) is correct.

A lexicologist is a person who writes dictionaries, and is therefore, an expert in words. Choice (A) is incorrect because a somnambulist is a sleepwalker, and therefore not an expert in sleep. Choice (C) is incorrect because a plaintiff is someone who brings a lawsuit, and is not typically an expert in juries. Choice (D) is incorrect because although a quorum is a majority, those words do not have the same relationship as the first half of the analogy. Choice (B) is correct because a lapidary is one who is an expert in precious stones.