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: disease has a negative impact on an organism, Fact2: Peace is freedom from sickness and disease., Question: What has a negative impact on an organism? (A) influenza (B) sickness (C) smallpox (D) leukemia (E) liver cancer (F) food (G) air (H) water

Ex Output:
B


Ex Input:
Fact1: a mutation in the sex cells of a parent can cause a new trait to appear in the parent 's offspring, Fact2: Animals that reproduce sexually produce sex cells, or gametes., Question: a mutation in the _ of a parent can cause a new trait to appear in the parent 's offspring (A) eggs (B) courtship (C) mitochondria (D) alleles (E) pollen (F) gametes (G) ATP (H) hormones

Ex Output:
F


Ex Input:
Fact1: a compass is used to navigate oceans, Fact2: Navigation by compass is especially difficult during a magnetic storm., Question: Navigating the oceans can be more difficult during  (A) lunar eclipses (B) a cold environment (C) Differences in speed (D) rapid changes occur (E) Plate tectonics (F) beach erosion (G) magnetic storms (H) Being over land

Ex Output:

G