選B毫無疑問
整個(gè)句子是這樣的：Darwin whose On the Origin of Species probably ranks second only to the Bible , had a great impact on western thought.
主句為 Darwin had a great impact on western thought.
定語從句為 whose On the Origin of Species probably ranks second only to the Bible,
因?yàn)?On the Origin of Species 是書名《物種起源》,它和Darwin（達(dá)爾文）是所有關(guān)系,所以用關(guān)系詞whose
意為：達(dá)爾文給西方思想以深遠(yuǎn)的影響,他的《物種起源》或許是一本僅次于《圣經(jīng)》的著作.