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.

Question: When a star is moving away from 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.
weaker

Question: What happens to a light car when it has the same power as a heavy car? 
 Option1: accelerates faster 
 Option2: accelerates slower 
 Explanation: The smaller its mass is, the greater its acceleration for a given amount of force.
accelerates faster

Question: Sasha is throwing bottles into the lake. Some bottles are filled with sand, and some only have a tiny bit of sand in them. The bottles filled with sand will sink first because they are 
 Option1: less dense 
 Option2: more dense 
 Explanation: The more tightly packed the particles inside the material are, the more dense we say they are.

more dense