Mark the letter A, B, C or D on...

Câu hỏi: Mark the letter A, B, C or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.
My uncle, who is an accomplished guitarist, taught me how to play.

A. unqualified 

B. ill-educated 

C. unskilled 

D. unimpaired