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: BANDS 
Clue: This band's last surviving brother lives & records in St. Charles, Illinois, far from the ocean

Answer: the beach boys


Question: Category: SIGNS & SYMBOLS 
Clue: The official insignia of this profession includes a serpent on a staff, a Greek delta & 32 leaves

Answer: dentistry


Question: Category: AMERICAN THEATRE HISTORY 
Clue: This 1943 musical is based on a 1931 play that featured Tex Ritter as a cowboy & Lee Strasberg as a peddler

Answer:
oklahoma!