Given the task definition and input, reply with output. 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: when the body is hot , sweat is produced to cool the body, Fact2: The reference to the warmth of the body is important here because the body when ill does get warm or warmer or even hot due to high temperature of fever., Question: What is produced by the human body that is ill with a fever in an attempt to cool? (A) NaCl (B) sweat (C) urine (D) warts (E) saliva (F) liquid (G) oil (H) Vapor
B