TASK DEFINITION: You are given a science question (easy-level) and four answer options (associated with "A", "B", "C", "D"). Your task is to find the correct answer based on scientific facts, knowledge, and reasoning. Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D'. There is only one correct answer for each question.
PROBLEM: Why does the leaf of a plant look green?
(A) Because it absorbs green light (B) Because it reflects green light (C) Because it absorbs only yellow and blue light (D) Because it reflects a mixture of yellow and blue light

SOLUTION: B

PROBLEM: The relationship between ticks and a dog can best be described as
(A) mutualism. (B) competition. (C) parasitism. (D) commensalism.

SOLUTION: C

PROBLEM: The human body has an average, normal temperature of about 98.6F. To keep the core body temperature from becoming too high, the brain sends a signal to the body to
(A) decrease sugar levels in the blood. (B) increase sugar levels in the blood. (C) decrease blood flow to the skin. (D) increase blood flow to the skin.

SOLUTION:
D