In the following questions, a sentence has been divided into four parts and marked a, b, c and d. One of these parts contains a mistake in grammar Idiom or syntax. Identify that part and mark it as the answer.

A. Though I take coffee or tea,

B. whichever is offered,

C. I consider coffee more preferable

D. if I am given a choice

Please do not use chat terms. Example: avoid using "grt" instead of "great".