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: Macroevolution is evolution over geologic time above the level of the species., Fact2: Dates are provided for the recognized eras and periods of geologic time., Question: Macroevolution above the level of the species happens over what (A) seasons (B) eras (C) scale (D) Earth (E) plates (F) days (G) minutes (H) years
Solution:
B