Mark the letter A, B, C, or D on your answer sheet...

Câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions
She was so busy that she couldn't answer the phone.

A. She was very busy that she couldn't answer the phone.

B. She was too busy to answer the phone.

C. She was too busy not to answer the phone.

D. She was very busy so that she couldn't answer the phone