“Type these letters at once!” the boss said to the...

Câu hỏi: “Type these letters at once!” the boss said to the secretary.The best form of reported speech for the above sentence is “…………………………”

A The boss ordered typing those letters at once.

B The boss asked the secretary to type those letters at once.

C The boss requested the secretary to type all the letters at once.

D The boss advised typing the letters at once.