select the part of the sentence that the participial phrase modifies. apparently you were quite convincing…

select the part of the sentence that the participial phrase modifies. apparently you were quite convincing in the debate competition, since you managed to defeat the state champion!
Answer
Brief Explanations:
A participial phrase modifies a noun or pronoun. In the sentence "Apparently you were quite convincing in the debate competition, since you managed to defeat the state champion!", the participial phrase "quite convincing" modifies the pronoun "you".
Answer:
you