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.

Category: ROCK AROUND AMERICA 
Clue: The house where this Janis Joplin band was formed once stood at 1090 Page Street in San Francisco
big brother and the holding company

Category: GENERAL SCIENCE 
Clue: A horse's hooves are made up of this protein, the same protein found in your fingernails
keratin

Category: LET'S GO TO A THEME PARK 
Clue: Let's "rush" over to Knott's Berry Farm & let an old prospector teach us how to pan for this

gold