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 simplicity, answers should be in all lower cased letters.
PROBLEM: Category: SINGING ACTORS 
Clue: Joey Lawrence was on this hit sitcom in 1993 when he had a Top 20 hit with "Nothin' My Love Can't Fix"

SOLUTION: blossom

PROBLEM: Category: U.S. RIVERS 
Clue: The Falls of Saint Anthony stop this mighty river from being navigable north of St. Paul, Minnesota

SOLUTION: the mississippi

PROBLEM: Category: TECHIES 
Clue: Nils Bohlin designed the 3-point safety belt for this automaker

SOLUTION:
volvo