Task: Question Answering
Input (English): Nicole was studying different ecosystems. She compared the number of plants living in a forest to those in a desert. Which factor best explains why more plants may survive in a forest?  
 (A) There is more rain in the forest. (B) There is more oxygen in the forest. (C) There is more sunlight in the forest. (D) There is more competition in the forest.
Output (English): A