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.
--------
Question: Which describes a material that is not a food?
(A) It stores energy but not nutrients. (B) It does not store energy or nutrients. (C) It stores energy and nutrients. (D) It does not store energy but stores nutrients.

Answer: B

Question: Which best describes a characteristic of the jet stream?
(A) It forms a boundary between a cold air mass and a warm air mass. (B) It creates the high winds around the eye of a hurricane. (C) It forces the hot air along the equator to rise to areas in North America. (D) It causes high pressure air masses to rotate clockwise.

Answer: A

Question: Which is an effect that cities have on the weather?
(A) Small numbers of plants cause rain to fall more often. (B) Large numbers of houses cause the wind to be stronger. (C) Small areas of open water cause fog to be more common. (D) Large areas of pavement cause the temperature to be hotter.

Answer:
D