Task: Question Answering
Input (English): In a food pyramid, which best explains why the number of organisms decreases from one trophic level to the next?  
 (A) Consumers at the lower level require more energy than the top-level consumers. (B) Consumers at the top level require more energy than the lower-level consumers. (C) The consumers are feeding on larger organisms that have less energy. (D) The consumers are feeding on smaller organisms that have less energy.
Output (English): B