Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to the sentence given in each of the following questions.
If I had worked harder, I would have passed the exam.
A.As I did not work hard enough, I did not pass the exam.
B.I failed the exam, so I will have to work harder.
C.I passed the exam because I worked harder than others.
D.Although I worked very hard, I did not pass the exam.