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 meter stick is used to measure distance, Fact2: How transaction measurements are calculated., Question: What often calculates how far it is between one point to another? (A) inches (B) measuring cup (C) chronograph (D) Cladistics (E) meter stick (F) Therapsids (G) Plate tectonics (H) chronometer
E