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").

Ex Input:
Fact1: nuclear reactions in stars causes stars to produce light, Fact2: An intense bright light produces a glare., Question: What in stars cause stars to produce bright glares (A) energy of moving objects (B) nuclear reactions (C) direct energy (D) shining suns (E) bright activity (F) Chemical energy (G) moving moons (H) heat energy

Ex Output:
B

Ex Input:
Fact1: natural disasters can cause animals to leave an environment, Fact2: Animal migration is mystery of nature., Question: Natural disasters can cause (A) deforestation (B) kill them (C) Pollution (D) disease (E) deadly (F) erosion (G) migration (H) flooding

Ex Output:
G

Ex Input:
Fact1: pushing on the pedals of a bike cause that bike to move, Fact2: Speed is controlled by pedalling and by pushing back on the moving pedals., Question: What is controlled by pushing on bike pedals? (A) motion (B) weight (C) pressure (D) health (E) cycles (F) driving (G) Energy. (H) speed

Ex Output:
H