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").

Fact1: a light bulb converts electrical energy into light energy when it is turned on, Fact2: Light bulbs are rated in Watts., Question: How is converted energy into light energy rated? (A) energy (B) unique (C) heat (D) good (E) watts (F) parsec (G) kilojoule (H) kinetic energy
E

Fact1: Veins generally carry deoxygenated blood., Fact2: Arteries and veins are blood vessels., Question: Arteries in the body are able to carry what? (A) saliva (B) breathe (C) water (D) Air (E) oxygen (F) blood (G) veins (H) liquid
F

Fact1: soil is formed by rocks eroding, Fact2: Rivers erode the rocks they flow over., Question: What is formed by rivers flowing over rocks? (A) soil (B) cracks (C) thrust (D) rain (E) biome (F) spring (G) potash (H) tube

A