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.

Category: FOOD & DRINK 
Clue: Before the introduction of Diet Coke, this was he leading diet soft drink in the U.S.
tab

Category: MUSIC WORDS 
Clue: Before it acquired its musical meaning in the early 20th century, it was baseball slang for "pep" or "energy"
jazz

Category: 1962 
Clue: On October 28, 1962 this 68-year-old world leader "blinked"

nikita khrushchev