This is a point of view where the author uses pronouns like he and she intelling a story

Third person Point of View.

Explanation:

In third-person point of view, the author is narrating a story about the characters, referring to them by name, or using the third-person pronouns “he,” “she,” and “they.”

Third person perspective

Explanation:

This is the view the author uses to convey feelings of a character while not being directly in their head.

the pronoun reference replaces a noun, but you have to make sure there's no room for confusion.

in the first sentence "her" could be referring to shely or to the sister. the answer there is "shelly called her sister and told her about the new baby."

in the second sentence "it" could be referring to the roof or the floor. the answer there is "since the roof leaks on the family room floor, we need to repair the roof."

the answer is d)to persuade the troops that she is a capable commander