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.

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

[Q]: Bridge inspectors have determined that a bridge is unsafe. Which of the following is the BEST design process the company should use to correct the problem?
(A) identify the problem-repair the bridge-plan for the repair (B) plan for the repair-repair the bridge-identify the problem (C) plan for the repair-identify the problem-repair the bridge (D) identify the problem-plan for the repair-repair the bridge
[A]: D

[Q]: What biological concept was Mendel studying when he crossed pea plants many times over many generations?
(A) imbalance in ecosystems (B) predator-prey relationships (C) dominant and recessive traits (D) male and female genetic differences
[A]:
C