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: CAPTURE THE FLAG 
Clue: Afghanistan's flag has a mosque in a wreath made of stalks of this grain
[A]: wheat


[Q]: Category: PARTICLE PHYSICS 
Clue: To get an element's mass number, add its protons & these
[A]: neutrons


[Q]: Category: AROUND THE WORLD 
Clue: The name of these South American mountains may be derived from anti, a Quechuan word for "east"
[A]:
andes