People who live in coastal areas should fear hurricanes because those

The sentence is discussing the reason why people living in coastal areas should fear hurricanes. The original sentence contains a list of three effects of hurricanes: "powerful winds, raining heavily, and devastating floods." However, the structure of the list is not parallel, as "raining heavily" is a verb phrase while "powerful winds" and "devastating floods" are noun phrases. Therefore, we need to revise the sentence to make the list parallel.

Option A: "raining heavily" is still not parallel to the other items in the list.

Option B: "heavy rainfall" is a noun phrase and is parallel to "powerful winds" and "devastating floods."

Option C: "causing heavy rainfall" is a participle phrase that modifies hurricanes, and it is not parallel to the other items in the list.

Option D: "with heavy rainfall" is a prepositional phrase that modifies "subject," which is not the intended meaning of the sentence.

Option E: "and also raining heavily" is not parallel to the other items in the list.

Therefore, option B, "heavy rainfall," is the best choice as it creates a parallel list of three noun phrases: "powerful winds, heavy rainfall, and devastating floods." The revised sentence reads: "People who live in coastal areas should fear hurricanes because those monstrous storms can subject these areas to powerful winds, heavy rainfall, and devastating floods."

Answer: B