Task: Question Answering
Input (English): A fever is a response to a disease-causing agent infecting the body. Raising one's body temperature changes the shape of enzymes in the agent so it cannot reproduce. Which statement best describes a fever?  
 (A) A fever is an internal response to an external stimulus. (B) A fever is an internal response to an internal stimulus. (C) A fever is an external response to an external stimulus. (D) A fever is an external response to an internal stimulus.
Output (English): B