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: Testosterone stimulates the reproductive organs to develop into male organs., Fact2: Male mammals have a tube-like organ called the 'penis'., Question: what does testosterone stimulate reproductive tissues to develop? (A) penis (B) PDAs (C) A drug. (D) offspring (E) ovaries (F) Man (G) CO 2 (H) vagina
answer:
A

question:
Fact1: sound can be used for communication by animals, Fact2: Sound Sound waves are mechanical waves., Question: What can be used for communication by animals? (A) books (B) Electrical energy (C) electromagnetic energy (D) nails (E) chemical messengers (F) mechanical waves (G) encoded information (H) ice
answer:
F