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: By pouring a pound of salt into a bucket of fresh water, could you cause the density of the water to 
 Option1: increase 
 Option2: decrease? 
 Explanation: Water density increases as salinity and pressure increase, or as temperature decreases.

Output: increase


Input: Consider Input: Question: Dane is checking the pH of his project and sees that it is quite high, which means that the acid in his project is 
 Option1: higher 
 Option2: lower 
 Explanation: Lower pH numbers are more acidic and higher numbers are less acidic (also called more alkaline).

Output: lower


Input: Consider Input: Question: Sue sees a star with a high frequency. Erin sees a star with a low frequency. The cooler star belongs to 
 Option1: Sue 
 Option2: Erin 
 Explanation: Shorter wavelengths (higher frequencies) correspond to higher energies and thus hotter star temperatures.


Output: Erin