They say that warm sea surface...

Câu hỏi: They say that warm sea surface temperatures help intensify tropical storms.

A. It was said that warm sea surface temperatures help intensify tropical storms.

B. It is said to help intensify tropical storms by warm sea surface temperatures.

C. Warm sea surface temperatures are said to help intensify tropical storms.

D. Warm sea surface temperatures is said to have helped intensify tropical storms.