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.

Input: Consider Input: Russell wants to observe changes in nature over the next few months. What can a thermometer help Russell investigate?  
 (A) rainfall amounts each week (B) tiny organisms in pond water (C) the high temperatures each day (D) the amount of growth in a plant

Output: C


Input: Consider Input: The parts of plants that make seeds are the  
 (A) roots. (B) stems. (C) flowers. (D) leaves.

Output: C


Input: Consider Input: Which statement describes how the umbilical cord supports a developing fetus?  
 (A) It provides a protective barrier between the mother and the fetus. (B) It keeps the fetus inside the mother until birth. (C) It provides a navel when the baby is born. (D) It supplies oxygen and nutrients to the fetus.


Output: D