Cindy said that “I haven’t seen John since last month.”

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.
Cindy said that "I haven't seen John since last month."
A. Cindy said she hasn't seen John since last month
B. Cindy said she hadn't seen John since the previous month
C. Cindy said she wasn't seen John since the previous month
D. Cindy said I hadn't seen John since the previous month