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: COLLEGE SPORTS 
Clue: 2 college players have rushed for more than 2,300 yards in a season: Barry Sanders & this USC back, later a Raider
marcus allen

Category: CATCHING A BREAK 
Clue: Musicians use this Italian term for a broken chord whose notes are played in succession
an arpeggio

Category: DUKES & EARLS 
Clue: As Earl of this, James Brudenell had a sweater named for him

cardigan