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.

Shale is a sedimentary rock that can be metamorphosed into slate by
(A) cementation. (B) chemical weathering. (C) sedimentation. (D) increased pressure.
D

How do plants get water and minerals?
(A) absorbed from the soil though the roots (B) absorbed from the soil through the stem (C) absorbed from the air through the flowers (D) absorbed from the air through the leaves
A

Which of the following is a characteristic of the "steady state theory" of the universe?
(A) The universe is constantly growing and changing. (B) A great explosion caused the origin of the universe. (C) The nature of the universe has always been the same. (D) Light moving from the center of the universe appears red.
C