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.

[Q]: 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.
[A]: weaker


[Q]: Question: A rubber band, when it is relaxed, will _____ elastic force. 
 Option1: gain 
 Option2: lose 
 Explanation: The farther the material is stretched or compressed, the greater the elastic force becomes.
[A]: lose


[Q]: Question: In a science class, the professor demonstrates refraction to the class. First, the professor shows a curved lens from a binocular, and then a flat pane of glass, demonstrating that 
 Option1: the curved lens refracts more light 
 Option2: the flat pane refracts more light. 
 Explanation: The more curved the surface of a lens is, the more it refracts the light that passes through it.
[A]:
the curved lens refracts more light