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: Milo loved to make things out of clay. If he made a clay ball, what would happen to the ball's gravitational force if he added extra clay to it? 
 Option1: decrease 
 Option2: increase 
 Explanation: The gravitational force increases with mass and decreases with the distance between the bodies.
[A]: increase


[Q]: Question: If Jim increases the number of segments on a rope he is using as a pully, the amount of force that he needs to apply when lifting something with the rope 
 Option1: increases 
 Option2: decreases 
 Explanation: The more rope segments on a pully that are helping to do the lifting work, the less force that is needed for the job.
[A]: decreases


[Q]: Question: Rich was examining a cliff face. Which part of the cliff is older, geologically speaking? 
 Option1: the base 
 Option2: the top 
 Explanation: The upper rock layers are much younger.
[A]:
the base