Fill in the blank: Whatever he does is always contrary __ my wishes.

A. from
B. of
C. to 
D. on

🧠 Explanation:

The correct preposition is “to” in “contrary to my wishes.” “To” is a preposition; “contrary” is an adjective. Alternatives like “against” can be used. Correct use of prepositions ensures grammatical accuracy and clarity in English sentence structure.