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.

[EX Q]: Category: FEMALE SINGERS 
Clue: She's tied with Mariah Carey for most no. 1 hits by a female with 18: 12 as a member of a group & 6 as a solo act
[EX A]: diana ross

[EX Q]: Category: MUSIC HISTORY 
Clue: In this building Ella Fitzgerald & Sarah Vaughan both won amateur talent contests, one in 1934 & the other in 1942
[EX A]: the apollo theater

[EX Q]: Category: ANATOMY 
Clue: The petrous temporal bone, the hardest in the body, encases the delicate structures of this organ
[EX A]:
inner ear