What is the VORTAC code for Gard City?

The VORTAC code for Garden City is GCK. VORTAC is a navigation aid that combines the functions of a VOR (VHF Omnidirectional Range) and a TACAN (Tactical Air Navigation) system, and each VORTAC station is assigned a unique three-letter identifier. GCK corresponds specifically to Garden City, which is located in Kansas, USA. This code is utilized by pilots and air traffic controllers for navigation and communication purposes.

The other options represent different codes for various airports and navigation aids. For instance, KGGG refers to an airport in Texas, LBY does not correspond to Garden City, and GHM likely represents a different navigation facility. Therefore, GCK is the correct designation for the VORTAC associated with Garden City.