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: John was viewing a patient's vital signs at the hospital. He could see clearly that the less oxygen to the cells, the pulse rate would become 
 Option1: Higher 
 Option2: Lower 
 Explanation: This causes the delivery of less oxygen to the cells, and this stimulates the heart rate via adrenalin, so that pulse rate increases in an effort to deliver enough oxygen to cells.
Higher

Question: Milo has been cutting his nails out for a very long time. As his nails get shorter, what happens to the amount of cells added to them? 
 Option1: increase 
 Option2: decrease 
 Explanation: As the nail grows, more cells are added at the nail bed.
decrease

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

smaller