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").

Ex Input:
Fact1: Plants use cellulose for their cell walls., Fact2: Green bean plantings continue to be planted., Question: What do green beans use for their cell wall? (A) Energy (B) cellulite (C) cellular (D) cellolosis (E) cellulose (F) lmestone (G) layers of fat (H) heat energy

Ex Output:
E


Ex 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

Ex Output:
D


Ex Input:
Fact1: the movement of tectonic plates causes volcanic eruptions, Fact2: Volcanic eruptions can cause short-term cooling of the Earth's climate., Question: What can cause a short-term cooling of the Earth's climate? (A) electromagnetic energy (B) a hemisphere is tilted away from the sun (C) The movement of tectonic plates. (D) Greenhouse gases (E) fissures of hot, acidic water (F) energy of moving objects (G) wind and erosion (H) exposure to cold

Ex Output:

C