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.
It’s possible that Joanna didn’t receive my message.
A. Joanna shouldn’t have received my message.
B. Joanna needn’t have received my message.
C. Joanna mightn’t have received my message.
D. Joanna can’t have received my message.