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: sonar is used to find the location of an object, Fact2: Dolphins have an astonishing sonar capability., Question: What can find the location of an object? (A) observe it (B) sea squirts (C) animals (D) Jellyfish (E) radiography (F) Light (G) satellites (H) dolphins
H