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: Butter is a fat that is a solid at room temperature., Fact2: Room temperatures between 40 and 80 Fahrenheit, or 5 and 27 Celsius, are best for storage., Question: When is butter a solid? (A) rapid changes occur (B) protect eyes in the lab (C) around 5 to 27 degrees Celsius (D) one effect of diabetes (E) protein foreign to the body. (F) natural atmosphere component (G) reduce acidity of food (H) speed at which sound moves

Ex Output:
C

Ex Input:
Fact1: lungs are used for breathing air by land animals, Fact2: Elephants are the largest animals on land., Question: What uses lungs for breathing air? (A) rocks (B) some mammals (C) Frogs (D) monotremes (E) humans (F) bacteria (G) elephants (H) oak trees

Ex Output:
G

Ex Input:
Fact1: Menopause occurs when menstruation stops occurring, usually in middle adulthood., Fact2: Lupron stops estrogen production causing fibroids to shrink in size and menstruation usually stops., Question: Lupron usually brings on (A) Dehydration (B) prostate cancer (C) Allergies (D) anemia (E) increased insulin production (F) menopause (G) enhanced fertility (H) heat produced

Ex Output:
F