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.

Category: BETTER KNOWN AS.... 
Clue: Singer Helen Folasade Adu
sade

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

Category: I, FOR ONE, WELCOME 
Clue: "From her beacon-hand glows world-wide welcome" is part of a poem found on a plaque at this landmark

the statue of liberty