TASK DEFINITION: You are given a question or fill-in-the-blank question, two answer options (Option1 and Option2) and an Explanation. Your task is to find the correct answer (return the string of the correct option, not option1/2) for the given question from the given options and using explanation.
PROBLEM: Question: When a star is nearing a planet, the star will be pulled into it if the gravitational force is 
 Option1: weaker 
 Option2: stronger 
 Explanation: The closer objects are to each other, the stronger the gravitational force between them.

SOLUTION: stronger

PROBLEM: Question: If particles drift together, they will pass energy to each other 
 Option1: quicker 
 Option2: slower 
 Explanation: When particles of matter are closer together, they can more quickly pass the energy of vibrations to nearby particles.

SOLUTION: quicker

PROBLEM: Question: Two suns moving away from each other will have _____ gravitational pull between them. 
 Option1: increasing 
 Option2: decreasing 
 Explanation: The closer objects are, the stronger the gravitational pull between them.

SOLUTION:
decreasing