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) CLOSEST in meaning to the underlined word(s) in each of the following questions.
He was attentive as Betsy and I talked about our charity concert to help the victims of the recent floods.

A. perceptive

B. indifferent

C. interested

D. negligent