You are given a science question (hard-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 is the most likely outcome of the Moon moving away from Earth?  
 (A) A lunar day is shorter. (B) A lunar eclipse lasts longer. (C) Earth moves closer to the Sun. (D) Earth's tides decrease in size.
[A]: D


[Q]: Which of these is an example of water changing from water vapor to liquid?  
 (A) moisture forming on a mirror when you breathe on it (B) sweat forming on your body when you exercise (C) ice cubes melting when you put them in a warm liquid (D) rivers drying up during a very hot summer
[A]: A


[Q]: Which form of energy can travel through a vacuum?  
 (A) thermal (B) solar (C) mechanical (D) chemical
[A]:
B