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: Jan poured a liquid solution into a bottle and the solution was very dense, so in the bottle it took up 
 Option1: more room 
 Option2: less room 
 Explanation: More dense water takes up less space than less dense water.
[A]: less room


[Q]: Question: Theresa created an electromagnetic wave with frequency 10000 megahertz. Eric created a frequency of 20000 megahertz. Whose frequency has greater energy? 
 Option1: Theresa 
 Option2: Eric 
 Explanation: The higher the frequency of an electromagnetic wave, the greater its energy.
[A]: Eric


[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