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.
I only recognized him when he came into the light
A. Not until he came into the light that I recognized him.
B. Not until did he come into the light that I recognized him.
C. Not until he came into the light did I recognize him.
D. Only when he came into the light that I recognized him.
Đáp án B