问题详情

Which of the following does NOT contain an adverbial clause of cause？

A．Coward as he was, he ran back as soon as the enemy attacked.

B．Inasmuch as he has confessed and apologized, we will forgive him for the wrongs he has done us.

C．Clever as the boy was, he found some difficulty in solving the problem.

D．Men differ from brutes in that they can think and speak.

请帮忙给出正确答案和分析，谢谢！