Pls help i will give brainliest to the correct answer

Read the excerpt from “How I Learned English.”

It was in an empty lot
Ringed by elms and fir and honeysuckle.
Bill Corson was pitching in his buckskin jacket,
Chuck Keller, fat even as a boy, was on first,
His t-shirt riding up over his gut,
Ron O’Neill, Jim, Dennis, were talking it up
In the field, a blue sky above them
Tipped with cirrus.

And there I was,
Just off the plane and plopped in the middle
Of Williamsport, Pa. and a neighborhood game,
Unnatural and without any moves,
My notions of baseball and America
Growing fuzzier each time I whiffed.

Which detail from this excerpt helps readers determine that the poem is written from a first-person point of view?

A. the description of the speaker as “unnatural”
B. the description of the boys “talking it up”
C. the use of the words “I” and “my”
D. the use of the words “his” and “them”