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: Mammals can also generate little bursts of heat by shivering., Fact2: Polar bears are mammals., Question: What can generate little bursts of heat by shivering? (A) alpacas (B) bacteria (C) animals (D) polar bears (E) phytoplankton (F) rabbit (G) viruses (H) humans

Ex Output:
D

Ex Input:
Fact1: Soil can be depleted of nutrients., Fact2: Dirt is really misplaced soil., Question: When gardening what can be depleted of nutrients? (A) fertilizer (B) bacteria (C) the plant (D) coal (E) pine (F) the dirt (G) Acids (H) water

Ex Output:
F

Ex Input:
Fact1: an organism requires energy for growth, Fact2: Plants get their energy from the sun., Question: what do plants need to grow? (A) the sun (B) nutrients (C) body water (D) food (E) seeds (F) Earthworms (G) sunlight (H) hormones

Ex Output:
A