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: ANIMALS 
Clue: These mollusks, not oysters, are the most common source for freshwater pearls
[A]: mussels


[Q]: Category: THERE'S A WEIGHT 
Clue: At the Kentucky Derby, the horses' equipment & these can weigh no less than 126 lbs. combined
[A]: the weight of the jockey


[Q]: Category: AT THE OK. CHORALE 
Clue: In 2005 the Oklahoma Master Chorale's "Hymns to Theotokos" featured songs dedicated to this biblical woman
[A]:
mary