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: Jeff added more and more processors to the supercomputer. The supercomputer will now likely be _____ powerful. 
 Option1: more 
 Option2: less 
 Explanation: But the more computing power that goes into the model and the care with which the scientists construct the model can increase the chances that a model will be accurate.
[EX A]: more

[EX Q]: Question: Mike wants his voice to travel slowly, so he will speak in a room that is 
 Option1: colder 
 Option2: warmer 
 Explanation: For a given medium such as air, sound has a slower speed at lower temperatures.
[EX A]: colder

[EX Q]: Question: We need oxygen masks when we climb Everest because the air pressure is 
 Option1: low 
 Option2: high 
 Explanation: Air pressure is less at higher elevations.
[EX A]:
low