I was given three books on cooking, the first _____I really enjo

I was given three books on cooking, the first _____I really enjoyed.


A、of that
B、of which
C、that
D、which
【正确答案】：B
【题目解析】：本题考查定语从句。句意：别人给了我三本关于烹饪的书，第一本是我真正喜欢的。这是一个定语从句，which指代three books。从句中有the first，因此关系代词前要加介词of。