When you're applying for a job, a reference is someone who:
a. keeps track of your scholastic records.
b. interviews you for a job.
c. will attest to your ability to perform a certain job.
d. you with insurance forms.

c. will attest to your ability to perform a certain job

Explanation:

apex

samuel gompers was an extremely important person in the american labor movement, being him an employee all his life he devoted himself to fight for the rights of his pairs, he believed they all had the right to have better thing and that they all were working for them but the factory workers were greedy, ambitions and socialist people for him who he didn't have a good concept of.

he gave so many speeches and led so many strikes and protest to fight for equality which he considered employers didn't want to accept, so he had an absolutely negative opinion of them.