You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

[Q]: Category: HARRISON FORD 
Clue: 1 of the 4 characters Ford has played more than once on film
[A]: han solo, jack ryan, indiana jones or bob


[Q]: Category: MILITARY TRAINING BASES 
Clue: Service branch with a San Diego recruit depot & a Yuma air station
[A]: marines


[Q]: Category: A SALT 
Clue: In the typical ionic bonding found in table salt, sodium gives up one of these to chlorine
[A]:
electrons