Task: Question Answering
Input (English): Nitrogen, a nutrient found in fertilizer, helps plants increase in size. Rainwater runoff often carries fertilizer into ponds and lakes. What effect does excess nitrogen have on organisms in a pond or lake ecosystem?  
 (A) Algae grows rapidly. (B) Mutations occur gradually in fish. (C) Clam shells are slowly weakened. (D) Frogs adapt quickly to new food sources.
Output (English): A