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.

[Q]: Category: -OLOGIES 
Clue: Seismology studies the seismic waves produced by these plate shifts
[A]: earthquakes


[Q]: Category: "E" GADS! 
Clue: In 1986 they became the first siblings inducted into the Rock & Roll Hall of Fame
[A]: the everly brothers


[Q]: Category: A MILITARY CAREER 
Clue: On graduating from Annapolis, you become either a Navy ensign or a second lieutenant in this service
[A]:
the marine corps