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: AMERICAN POETRY 
Clue: In "Stopping by Woods on a Snowy Evening", he wrote that he had "promises to keep, and miles to go before I sleep"

SOLUTION: frost

PROBLEM: Category: SOUTH OF THE BORDER 
Clue: Known as J.C., this boxing champion won titles in 3 weight divisions & more than 100 pro fights

SOLUTION: julio cesar chavez

PROBLEM: Category: THE 1930s 
Clue: He was appointed conductor of the Boston Pops in 1930

SOLUTION:
arthur fiedler