TASK DEFINITION: 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.
PROBLEM: Question: After diving, when you reach the top of the ocean it is nearly _____ because of the light levels
Option1: black
Option2: white
Explanation: The deeper you go, the darker the water gets.

SOLUTION: white

PROBLEM: Question: After the fire of a pile of tires at the landfill was put out, the reduction of smoke in the air made the air quality
Option1: better?
Option2: worse
Explanation: More pollutants mean poorer air quality.

SOLUTION: better?

PROBLEM: Question: In ancient times, there was worse medicine. This means there was a _____ death rate.
Option1: lower
Option2: higher
Explanation: More recently, the death rate has fallen because of the availability of more food and medical advances.

SOLUTION:
higher