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: If Milo cuts himself shaving and loses a lot of blood, what happens to his blood pressure? 
 Option1: increases 
 Option2: decreases 
 Explanation: If blood volume in the body decreases, blood pressure decreases.
decreases

Question: Milo owns two telescopes, one at the top of a mountain and one at the base. If he looks through the one at the top of the mountain, how much interference can he expect compared to the one at the top of the mountain? 
 Option1: more 
 Option2: less 
 Explanation: Many observatories are built on high mountains. There is less air above the telescope, so there is less interference from the atmosphere.
more

Question: If you want to make screwing into wood more difficult you should use a screw with 
 Option1: less threads 
 Option2: more threads 
 Explanation: Therefore, if the threads on a screw are closer together, you need to apply less force to penetrate the wood or other object.

less threads