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: Populations of viruses do not grow through cell division because they are not cells., Fact2: Viruses are the cause of many diseases., Question: What aren't diseases caused by? (A) ovaries (B) bacteria (C) A drug. (D) humans (E) cells (F) infection (G) virus (H) cats
[EX A]: E

[EX Q]: Fact1: if gas is heated then that gas will expand, Fact2: An increase in temperature causes a gas to expand., Question: what affects a gas? (A) electricity (B) kinetic energy (C) temperature (D) Evaporation (E) salinity (F) Pollution (G) wind (H) magnetism
[EX A]: C

[EX Q]: Fact1: Earth 's tilt on its rotating axis causes seasons to change, Fact2: Habitats change with the seasons., Question: What causes habitats to change? (A) global warming (B) the environment (C) fire conditions (D) Earth's tilt on its axis (E) To another location like underground (F) looseness of dirt or compost (G) deforestation (H) a tree falling
[EX A]:
D