Each set of the following sentences comprises four alternatives labelled as 'A','B','C', and 'D'. Candidate is required to select the most suitable alternative which conveys the exact meaning in accordance with the correct grammatical rules.

Options

A. It is the best which she could do for me.
B. It is the best what she could do for me.
C. It is the best that she could do for me.
D. It is best that she could do for me.

Answer

C