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 Q]: Fact1: Viruses cause many human diseases., Fact2: Some smallpox viruses are maintained in laboratories., Question: What can smallpox cause? (A) contamination (B) harmful substances (C) vaccines (D) photosynthesis (E) extinction (F) cellular respiration (G) Destroy crops (H) human disease
[EX A]: H

[EX Q]: Fact1: if an object is made of a material then that object has the properties of that material, Fact2: Headings include Materials Research, Materials, Ceramic Materials, Composite Materials., Question: if an object is what of a Ceramic then that object has the properties of Ceramic (A) edible (B) combined (C) heat (D) part (E) Joules (F) attached (G) made (H) unique
[EX A]: G

[EX Q]: Fact1: Many plants respond to the days growing shorter in the fall by going dormant., Fact2: Plants can be divided at any time, although the dormant or rest period is best., Question: What do many plants do to respond to the shorter days in fall? (A) go through a resting period (B) changing the phase (C) Release energy (D) Generating heat (E) produce more pollen (F) colder and wetter (G) grow taller (H) make more chlorophyll
[EX A]:
A