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: PICTURES AT AN EXHIBITION 
Clue: His 1960s works include "I Know How You Must Feel, Brad!" & "As I Opened Fire..."
roy lichtenstein

Category: LEGENDARY RHYME TIME 
Clue: Goat god's well-thought-out merrymaking schemes
pan\'s plans

Category: ART & ARTISTS 
Clue: You may remember there are 3 melting watches in his "The Persistence of Memory"

salvador dali