Mark the letter A, B, C, or D to indicate the sentence that is closest in meaningWatt spent much time and money in making experiments, but nothing he tried succeeded.

A. Although Watt spent much time and money in making experiments, nothing he tried succeeded.

B. Despite his failure after trial and trial, Watt spent much time and money in making experiments.

C. As Watt spent too much time and money in making experiments, nothing he tried succeeded.

D. If Watt hadn't spent much time and money in making experiments, anything he tried would have succeeded.