Q: 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 graduated cylinder is used to measure volume of a liquid, Fact2: Liquid volume is measured using a unit called a liter., Question: What unit do graduated cylinders use? (A) engines (B) meters (C) power (D) liters (E) inches (F) two (G) cellulose (H) pounds
A:
D