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.

Q: 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.

A: Higher
****
Q: Question: Reed saw a cell through a microscope. He sees a cell has less visible mitochondria than the rest. This cell likely is _____ active compared to the others. 
 Option1: more 
 Option2: less 
 Explanation: Cells that are very active would typically have more mitochondria than cells that are less active.

A: less
****
Q: Question: Two cars are going down the road, one weighs a ton, the other weighs two tons. If both crash, the car weighing two tons will have a momentum that is 
 Option1: smaller 
 Option2: larger 
 Explanation: The more mass a moving object has or the faster its moving, the greater its momentum.

A:
larger
****