select the participle or participial phrase.\nin the 1860s, joseph lister, an english surgeon, was an early…

select the participle or participial phrase.\nin the 1860s, joseph lister, an english surgeon, was an early proponent of using sterilized instruments in hospitals.
Answer
Brief Explanations:
A participle is a verb form that functions as an adjective. A participle phrase includes the participle and any modifiers or objects. In the sentence, "sterilized" is a past participle (from the verb "sterilize") that modifies the noun "instruments".
Answer:
sterilized