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: Differentiation is the process by which unspecialized cells become specialized., Fact2: T helper cells differentiate to Memory cells and effector cells., Question: memory cells and effector cells are what compared to T helper cells (A) dermal & vascular tissue (B) antibodies (C) fetal development (D) antigens (E) occurs over a wide range (F) prokaryotic cells (G) unicellular organisms (H) more specialized

Ex Output:
H


Ex Input:
Fact1: Earth 's tilt on its rotating axis causes seasons to change, Fact2: Weather changes from season to season., Question:  Earth 's tilt on its rotating axis causes changes in what (A) weather (B) sunlight (C) Joules (D) wind (E) heat (F) climate (G) energy (H) earth

Ex Output:
A


Ex Input:
Fact1: Mammals generate heat mainly by keeping their metabolic rate high., Fact2: Faster metabolism means more calories consumed, and usually, weight loss., Question: How do mammals generate heat? (A) freezing (B) Ice cubes (C) layers of fat (D) Taking pictures (E) with their fur (F) energy of moving objects (G) Consuming calories (H) Movement of an air mass

Ex Output:

G