In My opinion, (Not saying that this is the right answer)
I would Say C. Because if you use the process of
Elimination, "D" does not make sense. A labor relations specialist
does not fit this job description. "protecting clients’ personal information fits the benifits part in "C". Therefor making the job easier.
And Giving presentations fits the job analysis description.
So In my opinion, I believe the answer is C.
Hope this helps :)