TASK DEFINITION: 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 consistency, answers should be in all lower cased letters.
PROBLEM: Category: GOING WIRELESS 
Clue: Thanks to firms like Pegaso & Telemex, this country now has more cellular users than fixed line customers

SOLUTION: mexico

PROBLEM: Category: THIS "BUD"'S FOR YOU 
Clue: It's the practice of pairing swimmers, with each responsible for the other's safety

SOLUTION: the buddy system

PROBLEM: Category: HIT SONGS 
Clue: What a delight!  This band's "Afternoon Delight" topped the charts & went gold

SOLUTION:
the starland vocal band