Definition: 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").
Input: Fact1: planting trees has a positive impact on an ecosystem, Fact2: Knowledge of woodland ecosystems is advantageous., Question: Woodlands benefit from what? (A) planting trees (B) nutrients (C) deforestation (D) lowered energy cost (E) food and shelter (F) rainforest (G) genetic diversity (H) urban sprawl
Output:
A