What is the basis for the track 'Pianissimo Intermission' from Magellan's album 'Symphony for a Misanthrope'?

A. Johann Sebastian Bach's 'Goldberg Variation #1'
B. Pyotr Ilyich Tchaikovsky's 'Swan Lake'
C. Ludwig van Beethoven's 'Moonlight Sonata'
D. Wolfgang Amadeus Mozart's 'Eine Kleine Nachtmusik'
Answer: 