Task: Question Answering
Input (English): In the initial stages of manned space exploration, scientists needed to address adequate nutrition to provide astronauts with energy throughout the mission. Which of these criteria could not be used when considering food and energy for astronauts during manned space flights?  
 (A) history of space food (B) food crumbs in zero gravity (C) rehydration of certain foods (D) food storage for long periods
Output (English): A