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").
Q: Fact1: planting trees has a positive impact on an ecosystem, Fact2: Indiana forests are complex ecosystems., Question: What has a positive impact on forests? (A) genetic diversity (B) some invertebrates (C) planting trees (D) food and shelter (E) lowered energy cost (F) extinction of species (G) logging (H) canopy removal
A:
C