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: fog is formed by water vapor condensing in the air, Fact2: Water vapor rises into the atmosphere., Question: what does the atmosphere do before turning into fog (A) adapt (B) rest (C) Rise (D) fall (E) cooled (F) snow (G) swirl (H) Lift

Ex Output:
C


Ex Input:
Fact1: threatening behavior causes a fight-or-flight response in animals, Fact2: Basic survival- fight or flight., Question: what kind of response does threatening behavior cause in animals? (A) yelling (B) threatened (C) basic survival (D) influenza (E) digestion (F) respiration (G) symptoms (H) hypothyroidism

Ex Output:

C