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").

Input: Consider Input: Fact1: Cells are the microscopic building blocks of organisms., Fact2: Plants and animals are organisms., Question: What are cells in plants and animals? (A) production of energy (B) absorb light energy (C) large building blocks (D) sub-units of species (E) cellulitis (F) microscopic bulding blocks (G) disease (H) microorganisms

Output: F

Input: Consider Input: Fact1: All chemical reactions require activation energy to get started., Fact2: Chemical changes are a result of chemical reactions., Question: What is required before a chemical change? (A) kinetic energy (B) energy usage (C) activation push (D) activation energy (E) activation switch (F) activation power (G) Burning fuel and air (H) Evaporation

Output: D

Input: Consider Input: Fact1: Fertilization occurs when sperm swim to an egg inside an archegonium., Fact2: When a sperm cell fertilizes an egg cell, a fertilized egg or zygote is formed., Question: Where is a zygote formed by sperm swimming to an egg? (A) colder and wetter (B) ocean water (C) graptolites (D) rapid expansion (E) a delta (F) an archegonium (G) barnacles (H) an organism's body
Output: F