Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word for each of the blanks.

        These days, most people in Britain and the US do not (22) ______ very formal clothes. But sometimes it is important to wear the right thing.

         Many British people don't think (23) ______ clothes very much. They just like to be comfortable. When they go out to enjoy themselves, they can wear almost anything. At theatres, cinemas and concerts you can put on (24) ______ you like from elegant suits and dresses to jeans and sweaters. Anything goes, as long as you (25) _____ clean and tidy.

         But in Britain, as well as in the US, men in offices usually wear suits and ties, and women wear dresses or skirts (not trousers). Doctors, lawyers and business people wear quite formal clothes. And in (26) ______ hotels and restaurants men have to wear ties and women wear smart dresses.

Điền vào số (24)

A. what 

B. why  

C. who  

D. whom