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: heating salt water causes the water to evaporate while the salt remains, Fact2: Flash evaporators are used to make fresh water from salt water., Question: Doing what to salt water causes the water to become fresh water? (A) watershred (B) freezing (C) Regrows it (D) migrate (E) pouring (F) heating (G) cooling (H) erosion

Ex Output:
F


Ex Input:
Fact1: Mammals have a layer of fat under the skin to help insulate the body., Fact2: Harbor seals, like sea lions, have evolved to utilize a layer of fat called blubber., Question: How do sea lions keep warm? (A) protected (B) warm (C) Swimming fast (D) Sleeping (E) hydration (F) Blubber (G) four limbs (H) Eating a lot of fish

Ex Output:
F


Ex Input:
Fact1: Plants that shed their leaves seasonally each year are called deciduous plants., Fact2: Grapevines are woody deciduous plants., Question: What kind of plant would shed its leaves each year? (A) it needs them (B) grapevines (C) burning coal (D) warm-blooded (E) When it's cold (F) white (G) heat or cold (H) homogenous

Ex Output:

B