Star Trek: Is That an Order, Doctor? 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!

Is That an Order, Doctor?

Commander Beverly Crusher, M.D., played by actress Gates McFadden, is a fictional character on the television series Star Trek: The Next Generation and its subsequent spin-off films. She was a regular character in the show for all but the second of its seven seasons.  She was the chief medical officer of both the Enterprise-D and Enterprise-E. Dr. Crusher was appointed chief medical officer of the Starship Enterprise-D in 2364, and joined the ship at Farpoint Station with her son Wesley Crusher. She was not afraid to speak her mind to Captain Picard and in one episode advised him to rest.  He responded, "Is that an order, Doctor?".  During the second season, the Crusher character was written out of the show and replaced by the louder, more outgoing Dr. Katherine Pulaski. Patrick Stewart was upset by McFadden's departure from the show and played a large part in bringing about her return in season three. -wikipedia

QUESTION FOR FINAL COORDINATES: When Crusher's character was written off the show after season 1, what actor played a large part in returning her character to the show? 

A. Patrick Stewart - N39 23.085 W087 28.181

B. Will Wheaton - N39 23.425 W087 28.458

C. Leonard Nimoy - N39 23.580 W087 28.785

D. George Takei - N39 23.685 W087 28.787