Read the sentence.It was difficult to extinguish because the fire was too hot.What is the best way to revise this sentence?

The original sentence uses “it” without clearly identifying what was difficult to extinguish. Revising it to begin with “The fire” makes the subject clear: “The fire was difficult to extinguish because it was too hot.” Choice B is the clearest revision; choice A still has an unclear “it.”

AI-written and checked against the verified answer.