instruction:
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:
Question: Sandra sees a tiny glacier, and notes that it has smaller tributary glaciers flowing into it, in valleys that are 
 Option1: shallow 
 Option2: deep 
 Explanation: Smaller tributary glaciers, like tributary streams, flow into the main glacier in their own shallower U-shaped valleys.
answer:
deep


question:
Question: If Mona is holding a baseball above a table and then decreases the height of that baseball from the table, what happens to the potential energy of the baseball? 
 Option1: increases 
 Option2: decreases 
 Explanation: So the higher an object is above a surface, the more potential energy it has.
answer:
decreases


question:
Question: Mona is comparing the size of two atoms in her science lab. If she notices that one atom is smaller then the other, what does that tell her about the number of electrons it has? 
 Option1: more 
 Option2: less 
 Explanation: Bigger atoms have more electrons.
answer:

less