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: Mike wants his voice to travel slowly, so he will speak in a room that is 
 Option1: colder 
 Option2: warmer 
 Explanation: For a given medium such as air, sound has a slower speed at lower temperatures.
[A]: colder


[Q]: Question: If Mona is making lemonade and she decreases the acidity of it by adding more lemons, what happens to its closeness to pH 0? 
 Option1: increases 
 Option2: decreases 
 Explanation: The more acidic a solution is, the closer its pH value will be to 0
[A]: decreases


[Q]: Question: Chris is studying Lake Michigan. He takes soil samples from the Lake in two places. The first sample he takes from right near the shore. The second sample is taken from the middle of the lake. The _____ sample will have lesser dissolved nutrients in it. 
 Option1: first 
 Option2: second 
 Explanation: Water near shore generally has more dissolved nutrients than water farther from shore.
[A]:
second