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.

Input: Consider Input: Question: The convection of the Earth begins to slow down, so Daniel is worried that the plate tectonics will be 
 Option1: faster 
 Option2: slower 
 Explanation: Convection on early Earth was faster and so plate tectonics was faster.

Output: slower


Input: Consider Input: Question: A chemist compared two substances in the lab. Which substance will have a higher concentration of hydrogen ions? 
 Option1: the substance with the higher pH 
 Option2: the substance with the lower pH 
 Explanation: The lower the pH value is, the greater is the concentration of hydrogen ions and the stronger the acid.

Output: the substance with the lower pH


Input: Consider Input: Question: When April went for a run, she noticed that her heart was beating 
 Option1: faster 
 Option2: slower 
 Explanation: Warming up exercises increases the blood flow to the muscles and increases the heart rate.


Output: faster