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: A WORLD OF OPERA 
Clue: "Hunyadi Laszlo" is one of this country's best-loved operas
hungary

Category: AMERICAN ART & ARTISTS 
Clue: Roy Lichtenstein perfected his technique for simulating benday dots to mimic the artwork found in these "strips"
comic strips

Category: SUMMER 
Clue: 1935 folk opera that featured the song "Summertime"

porgy and bess