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: If valence electrons are far from an atom's nucleus, the atom is likely 
 Option1: bigger 
 Option2: smaller 
 Explanation: In bigger atoms, valence electrons are farther from the nucleus.
bigger

Question: An increase of carbon atoms will result in _____ possible arrangements. 
 Option1: less 
 Option2: more 
 Explanation: A: The more carbon atoms there are, the greater the number of possible arrangements of carbon atoms.
more

Question: Compared to a small rock, large granules of sand are able to dissolve 
 Option1: easier 
 Option2: harder 
 Explanation: Smaller pieces dissolve more easily.

harder