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").

Fact1: threatening behavior by predators causes a porcupine to extend its quills, Fact2: Puffers are smooth skinned while Porcupines have the characteristic spines or quills., Question: What does a porcupine do with its spines when it's threatened? (A) killing insects (B) Shoot them (C) kill them (D) protect them (E) Extend them (F) Shed them (G) Retract them (H) behave
E

Fact1: Humans have collected and grown mushrooms for food for thousands of years., Fact2: Yeast and mushrooms are types of fungus., Question: What have humans collected and grown for thousands of years? (A) Organic compounds (B) types of coral (C) types of ferns (D) bioaerosols (E) Most plants (F) types of fungus (G) types of pine trees (H) peachleaf willow
F

Fact1: photosynthesis means producers convert from carbon dioxide, water, and solar energy into carbohydrates for themselves, Fact2: Photosynthetic plants convert solar energy to chemical bond energy in carbohydrates., Question: Photosynthesis converts solar energy into what for themselves? (A) Greenhouse gases (B) peachleaf willow (C) chemical messengers (D) Organic compounds (E) basic building blocks of life (F) chemical bond energy (G) one celled organisms (H) rays or beams
F