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 Q]: Fact1: when light enters the eye through the pupil , that light falls on the retina, Fact2: Images are retained on the retina of a viewer's eye for a fraction of a second after they strike it., Question: Where are images retained? (A) Retina (B) RNA (C) calcite (D) an object (E) arteries (F) energy (G) squids (H) segmented
[EX A]: A

[EX Q]: Fact1: a battery converts chemical energy into electrical energy, Fact2: Check the fire alarm's batteries the first of each month., Question: What converts chemical energy into electrical energy? (A) Something in a fire alarm (B) sperm and egg fuse (C) Males and females (D) igniting fuel and oxidiser (E) The bending of a ray of light (F) basic building blocks of life (G) sensory neurons (H) mechanical waves
[EX A]: A

[EX Q]: Fact1: if all members of a species cannot produce offspring then that species will likely become extinct, Fact2: Extinct species are species that are gone forever., Question: If all members of a species cannot produce offspring, that species will be gone for how long? (A) Jellyfish (B) not at all (C) threatened (D) forever (E) dormant (F) Winter (G) temporarily (H) a while
[EX A]:
D