Mark the letter A, B, C, or D on your answer sheer to indicate the most suitable response to complete each of the following exchanges.
Nancy and James are talking about their school days.
- Nancy: "I think school days are the best time of our lives."
- James: " ______ . We had sweet memories together then."
A.Absolutely
B.That's nonsense
C.I'm afraid so
D. I doubt it