They say that warm sea surface temperatures help i...

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.