Question

Which answer properly corrects the phrase fragment in italics?

To find his missing books. He had to search all over the house.

A.
He had to search all over the house; finding his missing books.

B.
Finding his missing books. He had to search all over the house.

C.
To find his missing books, he had to search all over the house.

D.
He had to search all over his house, and to find his missing books.