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").

Fact1: chemical weathering causes iron in rock to oxidize, Fact2: Oxides Oxides Oxides are elements combined with oxygen., Question: Chemical weathering causes iron in rock to combine with what? (A) uranium (B) oxygen (C) cartilage (D) nothing (E) an object (F) vacuum (G) energy (H) heat
B

Fact1: Many plants respond to the days growing shorter in the fall by going dormant., Fact2: Jade plants have an active and a dormant growing cycle., Question: What do Jade plants do in the fall? (A) Change colors (B) Go dormant (C) Reproduce (D) Wilt (E) Exfoliation (F) Refract it (G) relocation (H) It expands
B

Fact1: Playing is just one of many ways that mammals and other animals learn how to behave., Fact2: Mammals include lions, bears, dogs, horses, cattle and antelopes., Question: What learns to behave through playing? (A) otters (B) bacteria (C) viruses (D) rocks (E) lions (F) animals (G) humans (H) Birds

E