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.

[EX Q]: What season is the Northern Hemisphere experiencing when it is tilted away from the Sun?  
 (A) spring (B) summer (C) autumn (D) winter
[EX A]: D

[EX Q]: A student has just completed a laboratory activity. What is the last action that the student should perform before leaving the lab area?  
 (A) wash hands (B) turn off all equipment (C) put away all glassware (D) wash instruments and table tops
[EX A]: A

[EX Q]: A student records the temperature in the schoolyard every day for a month. Which is the best way to present the temperature data so each day can be compared?  
 (A) summary paragraph (B) labeled diagram (C) pie chart (D) bar graph
[EX A]:
D