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: thick fur can be used for keeping warm, Fact2: When the body is warm, heat production is minimized., Question: thick fur can be used for minimizing what? (A) heat energy (B) heat production (C) scattered light (D) energy usage (E) freezer burn (F) movie production (G) fur production (H) Temperature

Ex Output:
B


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: Algae have varied life cycles., Fact2: Coccolithophorids are members of the Algae., Question: What do Coccolithophorids have? (A) a cuticle (B) epidermis and dermis (C) kinetic energy (D) food and shelter (E) critical organs (F) varied life cycles (G) sensory neurons (H) Epidermis

Ex Output:

F