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.

Q: Category: SPORTS FIRSTS ON THE FIRST 
Clue: On February 1, 1970 Dave Balon pulled off his first one of these in his pro hockey career

A: hat trick
****
Q: Category: BEGINS & ENDS WITH "K" 
Clue: In 1979 this rock group topped the charts with "My Sharona"

A: the knack
****
Q: Category: MYSTERIES 
Clue: 1st cousins Dannay & Lee wrote the Ellery Queen stories under this pen name

A:
ellery queen
****