Of all the applicants, cindy is the person for the job.

Here, we are essentially comparing Cindy to the other applicants - else, why mention them? there seem to be many  applicants that Cindy is better than -this suggests to us that she is the best of them all, or "the most qualified" of them all. We call this form of the adjective the superlative.
 

Well re read the verse on why