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: 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
E

Fact1: seeing requires light, Fact2: Sight is the mere ability to see, and the eye's responses to light shining into it., Question: What do eyes require? (A) a form of oxygen (B) Light shining into it (C) Exposure to oxygen and water (D) A dark environment (E) Contact lenses (F) melanin amount (G) tissue made of chondrocytes (H) Glasses
B

Fact1: Most pituitary hormones control other endocrine glands., Fact2: Endocrine Glands Endocrine glands are the hormone producing structures of the body., Question: A vital role of hormones produced by the pituitary gland (A) fostering myopia (B) stimulating investing (C) increases a body's strength (D) production of energy (E) controlling hormone production (F) producing rabies (G) it helps plants in growing (H) Transfers energy

E