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: Most amphibians breathe with gills as larvae and with lungs as adults., Fact2: All frogs are amphibians., Question: What do frogs breathe with when they are adults? (A) skin (B) fins (C) lungs (D) oxygen (E) gills (F) air (G) Energy (H) Gases

Ex Output:
C


Ex Input:
Fact1: Insulin helps cells take up glucose from the blood., Fact2: Insulin made by a person's own pancreas is endogenous insulin., Question: what type of compounds produced by a person's pancreas help cells take up compounds (A) Energy (B) natural (C) mineral (D) endogenous (E) Break down food (F) it needs them (G) sweat glands (H) Energy.

Ex Output:
D


Ex Input:
Fact1: Fungi have special structures for penetrating a host., Fact2: Fungi include yeasts, molds, and fleshy fungi., Question: What has special structures for penetrating a host? (A) Oak (B) amoeba (C) mussels (D) molds (E) air molecules (F) goats (G) ferns (H) gills

Ex Output:

D