Task: Question Answering
Input (English): Two chemicals are mixed in a test tube and a chemical reaction takes place. If this reaction is endothermic and the test tube is touched, which of the following best describes what is felt?  
 (A) The test tube is cold. (B) The test tube is warm. (C) The test tube is very hot. (D) The test tube is the same temperature as the air.
Output (English): A