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").

[EX Q]: Fact1: Urine is the liquid waste product of the body that is excreted by the urinary system., Fact2: Mammals excrete urea in the watery form of urine ., Question: What is a waste product of the body that is excreted by the urinary system? (A) potash (B) food (C) CO 2 (D) sugar (E) urea (F) liquid (G) H 2 O (H) sulfur
[EX A]: E

[EX Q]: Fact1: recycling has a positive impact on the environment, Fact2: Steel is a recycled and recyclable product., Question: What has a positive impact on the environment? (A) animals (B) bushes (C) energy (D) peachleaf willow (E) oysters (F) using steel (G) Solar energy (H) Green beans
[EX A]: F

[EX Q]: Fact1: if humans disturb animals in a location then those animals will move to a different location, Fact2: A small number of unscrupulous whale watching companies were also taking their clients too close to the animals and causing disturbance., Question: What can cause whales to move to a new location? (A) Earth orbiting the Sun (B) movements in the earth's crust (C) embarrassment (D) Temperature changing (E) tax rates (F) whale watching boats (G) unemployment rates (H) mechanical waves
[EX A]:
F