Star Trek: Seeing More Than Most 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!

Seeing More Than Most

"You know, I've never seen a sunrise... at least not the way you see them." – Geordi La Forge to Jean-Luc Picard, 2375
Geordi La Forge held the rank of lieutenant commander and was the chief engineer of the USS Enterprise-D and USS Enterprise-E, both under Captain Jean-Luc Picard.  He appeared in all seven seasons of the American science fiction television series Star Trek: The Next Generation and its four feature films. Portrayed by LeVar Burton, he occupied the role of chief engineer. La Forge is naturally blind so one of his trademarks in the series is wearing a VISOR that allowed him to see various spectrums of light, which is later replaced by ocular prosthetic implants in the last three films.  With his visor he was able to see more than most, making other crewpersons seem hopelessly "blind" by comparison - wikipedia

QUESTION FOR FINAL COORDINATES:In the first season of The Next Generation, Geordi held what position on the ship before he was promoted to chief engineer in the second season? 

A. Security - N39 23.999 W087 29.121

B. Science Officer - N39 23.161 W087 29.450

C. Doctor - N39 23.317 W087 29.588

D. Helmsman - N39 23.211 W087 29.058