Detailed Instructions: 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").
Problem:Fact1: the vomiting reflex is used to remove toxic material from the stomach before it is absorbed, Fact2: Finally, lead is toxic., Question: What is used to remove lead from the stomach? (A) Vomiting reflex (B) heat energy (C) Fish hook (D) layers of fat (E) an electron microscope (F) evaporation (G) digestion (H) acid
Solution:
A