Given the task definition and input, reply with output. In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").

Fact1: a rubber band snapping causes the particles in the rubber band to vibrate, Fact2: Of course, pianos and other instruments produce damped, forced vibrations., Question: A rubber band snapping acts like what? (A) electromagnetic energy (B) wavelengths and photons (C) Relieve pain (D) electrically (E) Electrical energy (F) flow of electrons (G) rays or beams (H) A piano making sound
H