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: The air gets thicker when it is 
 Option1: hot 
 Option2: cold 
 Explanation: Increasing air temperature decreases atmospheric pressure.
cold

Question: Mike needed to get a dark picture . In order to get the darkest photo, Mike made the exposure 
 Option1: longer 
 Option2: shorter 
 Explanation: The longer the exposure, the more light that the telescope can gather to make the image.
shorter

Question: Johnny is playing with his father's binoculars. What would happen to the field of view if he decreased the magnification of the binoculars? 
 Option1: it would increase 
 Option2: it would decrease 
 Explanation: As the magnification increases, the field of view decreases.

it would increase