Star Trek: Curse of the Redshirt Mystery Cache

Caching: The finder's frontier.  These are the voyages of the caching explorers.  Their life-long mission: to explore strange new towns, to seek out new caches and new hiding spots, to boldly go where no muggle has gone before.

This Star Trek Geoart is a tribute for Trekkies and non Trekkies all around. Answer the questions to find the final coordinates for each cache in the series. Cache is not at the posted coordinates. Enjoy!

Curse of the Redshirt

Redshirt is a term used by fans and staff of Star Trek to refer partially to the characters who wear red Starfleet uniforms, and mainly to refer to those characters who are expendable, and quite often killed, sometimes in great numbers. They are the unlucky victims of attacks and sicknesses. In the era regularly depicted in Star Trek: The Original Series, red uniforms were worn by members of the operations division. -memory-alpha.org

QUESTION FOR FINAL COORDINATES: In Star Trek: The Original Series, redshirt crewmen often had what job? 

A. Doctors - N39 24.456 W087 25.789

B. Cooks - N39 24.654 W087 25.321

C. Captains - N39 24.012 W087 25.345

D. Security - N39 24.718 W087 25.920