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.

[EX Q]: Question: If the air temperature rises during a heat wave, what is likely happening to the atmospheric pressure? 
 Option1: It will increase 
 Option2: It will decrease 
 Explanation: Increasing air temperature decreases atmospheric pressure.
[EX A]: It will decrease

[EX 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.
[EX A]: Higher

[EX Q]: Question: Would Jim's solution become more or less acidic if he decreased the concentration of hydrogen atoms in it? 
 Option1: more acidic 
 Option2: less acidic 
 Explanation: With a higher the concentration of hydrogen ions, a solution is more acidic and has a lower pH.
[EX A]:
less acidic