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: Some pelycosaurs gave rise to a group of animals called therapsids., Fact2: Pelycosaurs are an important lineage preserved in the fossil record., Question: How do we know the lineage of therapsids? (A) Laboratory (B) dinosaurs (C) prokaryotic cells (D) some anthozoans (E) fossil record (F) oral tradition (G) polygenic (H) calibrated

Ex Output:
E


Ex Input:
Fact1: Mutualism is a symbiotic relationship in which both species benefit., Fact2: Dogs and humans are symbiotic species., Question: what exists between dogs and humans? (A) mutualism (B) gravity (C) communication (D) antigens (E) several genes (F) space between (G) electrons (H) german shepherd

Ex Output:
A


Ex Input:
Fact1: Vesicle transport requires energy, so it is also a form of active transport., Fact2: Active transport requires a carrier molecule and a form of energy., Question: Vesicle transport requires energy and a what? (A) activity (B) major threat to health (C) metabolic reaction (D) hydration (E) biofuel (F) wavelengths and photons (G) carrier molecule (H) Vibrations.

Ex Output:

G