How to annotate where the sidewalk ends

in the following paragraph, the fourth sentence the correct answer is: three personal subject pronouns

”she was embarrassed when she found that they had been put back on the shelves…”

a   subject pronoun is a personal pronoun. i, you, he, she it, we, they.  

in the sentence it can be observed she, used twice and they used once. is for this reason that is a three personal subject pronoun sentence.

if the italicized words are he ran switfly, we can rewrite the sentence using a verbal phrase as follows:

running swiftly he was able to overtake the child.

that passage is from dr. king