instruction:
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").
question:
Fact1: recycling has a positive impact on the environment, Fact2: Steel is a recycled and recyclable product., Question: What has a positive impact on the environment? (A) animals (B) bushes (C) energy (D) peachleaf willow (E) oysters (F) using steel (G) Solar energy (H) Green beans
answer:
F

question:
Fact1: a mirror is used for reflecting light, Fact2: Light seems to travel in rays or beams., Question: what can a mirror be used to reflect? (A) noble gases (B) air particles (C) glass (D) focusing a lens (E) rays or beams (F) photons (G) sun's heat (H) an electron lens
answer:
E

question:
Fact1: Heterotrophs are living things that cannot make their own food., Fact2: All animals are heterotrophic., Question: What cannot make their own food? (A) parasites (B) animals (C) producers (D) fungi (E) bacteria (F) phytoplankton (G) plants (H) humans
answer:
B