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.

Category: THE SPORTS CHANNEL 
Clue: Fly balls & sacrifices are parts of this sport
baseball

Category: SUPERHEROES 
Clue: For a while the Hulk was gray, but now he's this color
green

Category: FLOWER POWER 
Clue: From the Latin for "three threads", it's the flowery structure seen here

trellis