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: 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