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 we dig up rocks the deeper we get the rocks get 
 Option1: older 
 Option2: younger 
 Explanation: Older rocks are at the bottom and younger rocks are at the top.
older

Question: A moving ball that is only lightly resisted by fluid friction is likely to be quite 
 Option1: small 
 Option2: large 
 Explanation: The faster or larger a moving object is, the greater is the fluid friction resisting its motion.
small

Question: If the Earth's orbit moves closer to the Sun, what happens to the gravitational force between the two planets? 
 Option1: it increases 
 Option2: it decreases 
 Explanation: This is because the gravitational force of attraction between the Earth and Sun is stronger when the Earth is closer to the Sun.

it increases