I think it's D but I might be wrong
<span>This is false, a gerund is a verb acting as a noun.</span>
<span>She is surprised and in awe of his passion for his beliefs. She can tell he genuinely believes.</span>
In sentence 4, "After a heated discussion"is a <span>A prepositional phrase
because prepositional phrase lack a subject
so i conclude option C is correct
hope it helps
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