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-Y 
Clue: 1984's "Jump" was the first No. 1 hit for this group that features brothers Alex & Eddie
van halen

Category: MR. AND MRS. SMITH 
Clue: An annual festival in Sydney, Australia honors Maria Smith, the originator of this famous apple
the granny smith apple

Category: BRITISH PRIME MINISTERS 
Clue: One of 11 children, this 26th prime minister could have formed a police force out of his family

robert peel