Which is an example of a primary source?

An analysis of a play
A play
A biography of a play write
A historian explanation of the setting of a play
An evaluation of the performance of a play

A play

Explanation:

This would be a primary source

what passage could you provide the passage.

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."