The students couldn’t go swimming because the sea was so...

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.
The students couldn't go swimming because the sea was so rough.
A. The sea was too rough for the students to go swimming in.
B. The sea was rough enough for the students to go swim in.
C. The sea wasn't rough enough for the students to go swim in.
D. The sea was so rough that the students could go swimming in it