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: 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.
deep

Question: When we are building a computer if we want to add resistance we need 
 Option1: more resistors 
 Option2: fewer resistors 
 Explanation: Increasing the number of resistors in a series circuit increases the overall resistance of the circuit.
more resistors

Question: Milo works as an astronomer and he has multiple telescopes at his disposal. If he is looking at the stars through a small telescope and then moves to a larger one, will the amount of light collected by the larger one be 
 Option1: greater 
 Option2: smaller 
 Explanation: Larger telescopes can collect more light.

greater