Answer :
Wikipedia defines "first person point of view" as "A first-person narrative is a mode of storytelling in which a narrator relays events from their own point of view using the first person i.e. "I" or "we", etc. It may be narrated by a first person protagonist (or other focal character), first person re-teller, first person witness, or first person peripheral (also called a peripheral narrator)."
The following option best identifies a feature that can be used to identify the first person point of view :
C.The use of pronouns.
The use of pronouns "I" or "We" are clear indications that the narrative is in the first person.
The pronouns "he", "she", or "it" are used to refer to the main character in the third person narrative.