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.

[EX 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.
[EX A]: increase

[EX Q]: Question: Rita added more food to the box. It is now _____ to move. 
 Option1: harder 
 Option2: easier 
 Explanation: The full box is harder to move because it has greater mass and therefore greater inertia.
[EX A]: harder

[EX Q]: Question: If the Earth is orbiting the Sun and it begins to move farther from it, what happens the speed the Earth is moving? 
 Option1: increase 
 Option2: decrease 
 Explanation: The Earth travels faster in its elliptical orbit when it is closer to the Sun than when it is farther away.
[EX A]:
decrease