Before I buy a car,I perfer a mechanic, whom I truly trust,_____it.

题目

Before I buy a car,I perfer a mechanic, whom I truly trust,_____it.
A.to examine B.examining C.examine D.examined
答案是A在线求语法帝.要详细点的过程~谢谢.

答案

A
whom I truly trust可以不予理会
prefer sb to do sth愿意让某人做某事