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.
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Question: Category: THE BIBLE 
Clue: Jesus asked this disciple to follow him as he sat in his tax office

Answer: matthew


Question: Category: GOING ALPHANUMERIC 
Clue: Bingo square coordinate that sounds like a synonym for "not malignant"

Answer: b-9


Question: Category: YELLOW MUSIC 
Clue: From 1970's "Ladies of the Canyon" album, it's Joni Mitchell's song of ecological concerns

Answer:
"big yellow taxi"