The storyline of Qing Yu Nian takes place in a time travel, a man in the contemporary era

The storyline of Qing Yu Nian takes place in a time travel,       a man in the contemporary era is reborn in the ancient era to a mysterious mother.
A. what B. which C. that D. where
【答案】D
【解析】
【详解】考查定语从句。句意：《庆余年》其实是一个穿越故事，一个现代人在古代重生，他的母亲身份很神秘。分析句子可知，The storyline of Qing Yu Nian为先行词，在后面的定语从句中做地点状语，所以关系副词为where。故选D项。