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: john was taking the patients blood pressure and other vital signs. He saw that the lower the blood volume, the pressure was 
 Option1: Greater 
 Option2: Less 
 Explanation: This is because the lower blood volume in the vessels exerts less pressure on the vessel walls.
answer:
Less


question:
Question: If Milo removes mass from an object, what will happen to the force of gravity that object generates? 
 Option1: decreases 
 Option2: increases 
 Explanation: Objects with greater mass have a stronger force of gravity.
answer:
decreases


question:
Question: If Mona is flying her plane in the stratosphere on a journey and she moves higher up into the stratosphere, what happens to the temperatures her plane experiences? 
 Option1: they increase 
 Option2: they decrease 
 Explanation: The stratosphere contains the ozone layer, the temperatures increase as altitude increases.
answer:

they increase