Detailed Instructions: In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").
Problem:Fact1: planting trees has a positive impact on an ecosystem, Fact2: Some trees are maples., Question: what can be planted to have a positive impact on the ecosystem? (A) maples (B) Species (C) plants (D) soil (E) seeds (F) animals (G) Echinoids (H) mushrooms
Solution:
A