Question: "Treehouse of Horror" is the third episode of "The Simpsons"' which number season, and is the first episode to have the music composed by Alf Clausen, an American film and television composer?
Sentence (from "Treehouse of Horror (The Simpsons episode)"): "Treehouse of Horror" is the third episode of "The Simpsons"<nowiki>'</nowiki> second season.
Relevant evidence: Yes