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: friction causes an object to lose energy, Fact2: Objects An object can be one of several things., Question: What does friction cause things to lose? (A) heat (B) moisture (C) toughness (D) Energy. (E) traits (F) light (G) energy (H) cartilage

Ex Output:
G


Ex Input:
Fact1: cooking food requires adding heat energy, Fact2: Meat is a nutrient-dense food., Question: what requires adding heat energy to cook? (A) edible (B) corn (C) apples (D) coffee (E) making (F) trout (G) sugar (H) meat

Ex Output:
H


Ex Input:
Fact1: Feathers help birds fly and provide insulation., Fact2: Some birds are flightless birds., Question: Why do the flightless have feathers? (A) layers of fat (B) Sublimation (C) it needs them (D) warm-blooded (E) Air conditioning (F) Radiation (G) Insulation (H) protect them

Ex Output:

G