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.
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Question: Category: "FIRST" CHRONICLES 
Clue: There is reddening of the epidermis but no blistering in this

Answer: a first-degree burn


Question: Category: DIMENSIONS 
Clue: Don't lose the thread--there are 10 or so dimensions in this physics theory

Answer: string theory


Question: Category: THE BARD WRITES 
Clue: "Twelfth Night" begins, "If music be the food of love", do this

Answer:
play on