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").

[Q]: Fact1: a flashlight requires a source of electricity to produce light, Fact2: Flashlights can help children see better., Question: Children see better with a source of electricity to do what? (A) focusing a lens (B) staying warm (C) survival (D) reproduce (E) produce light (F) remove electricity (G) produce darkness (H) remove light
[A]: E

[Q]: Fact1: DNA contains genetic instructions for proteins, and RNA helps assemble the proteins., Fact2: DNA is the genetic material responsible for heredity., Question: The genetic material responsible for heredity contains what? (A) wavelengths and photons (B) instructions for proteins (C) characteristics (D) pre-assembled proteins (E) organelles (F) Chemical energy (G) A compound that donates proton (H) blood
[A]: B

[Q]: Fact1: increasing heat causes thermal expansion, Fact2: Thermal fatigue cracking is notably different than thermal expansion damage., Question: what can cause fatigue? (A) cigarettes (B) Dehydration (C) expansion (D) Pollution (E) influenza (F) hormones (G) sweating (H) smoking
[A]:
C