This composition was inspired by Thomas de Quincey's book Confessions of an Opium Eater, and the composer's own rejection by Irish actress Harriet Smithson. This piece begins with the protagonist meeting his unrequited love, only to be rejected, and by the beginning of the Fourth Movement, entitled, March to the Scaffold, he has poisoned himself with opium. After the protagonist imagines his execution, he finds himself in a witches sabbath and a diabolical chant of the Latin Mass Dies Irae. For 10 points, name this feverish opium dream, composed by Hector Berlioz.
a) Symphony Fantastique
b) Moonlight Sonata
c) Swan Lake
d) The Four Seasons