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: DESIGN 
Clue: Derived from scutum, the Latin for "shield", it's a shield bearing a coat of arms, or a metal plate around a keyhole
escutcheon

Category: THE "I"s HAVE IT 
Clue: Style of the 1877 painting seen here

impressionism