She gave me details of all the schools she had visited while she was on an official tour.

Options

A. all the schools she had visited
B. No error
C. She gave me details of
D. while she was on a official four

Answer

C

Explanation

the (Def. Art.) will be used before details detail (Countable N.): a small individual fact/item, Here, details refers to specific information Hence, She gave me the details of is the right usage.