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").

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

A: A
****
Q: Fact1: an egg requires warmth to survive, Fact2: First the frog lays the eggs, then the warmth from the sun makes the eggs hatch into baby tadpoles., Question: what keeps eggs warm? (A) ice (B) hair (C) wool (D) bears (E) fur (F) sun (G) moss (H) sand

A: F
****
Q: Fact1: an egg requires warmth to survive, Fact2: Oil provides heating for warmth and gasoline for transportation., Question: What does an egg require to survive? (A) sound (B) heat (C) energy (D) food (E) warm (F) Sun (G) freezing (H) movement

A:
B
****