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.

Example Input: Similar types of cells form tissues. What is the next level of complexity formed from the grouping of tissues?  
 (A) organs (B) organelles (C) organisms (D) organ systems
Example Output: A

Example Input: For a technology project, Kyle came up with an idea to build a model bridge. He wants his bridge to span 50 cm and to support a 1 kg object. According to the engineering design process, which of the following should be Kyle's next step?  
 (A) construct prototypes of different kinds of bridges (B) research the different designs of bridges (C) gather the materials needed to build the bridge (D) make a drawing to show how to build the bridge
Example Output: B

Example Input: Which is a statement about climate?  
 (A) The average temperature yesterday was 15°C. (B) The temperature range today was 10°C to 20°C. (C) The high temperature tomorrow will be 14°C. (D) The average high temperature in May is 20°C.
Example Output:
D