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: Don was swimming in the ocean, and decided to dive deeper. Don noticed that the shallower he swam the water got 
 Option1: darker 
 Option2: lighter 
 Explanation: The deeper you go, the darker the water gets.

SOLUTION: lighter

PROBLEM: Question: Objects that are closer together have a _____ force of gravity. 
 Option1: stronger 
 Option2: weaker 
 Explanation: Objects that are closer together have a stronger force of gravity.

SOLUTION: stronger

PROBLEM: Question: When we test something with a litmus test and the number is high it is 
 Option1: acidic 
 Option2: basic 
 Explanation: Lower pH numbers are more acidic and higher numbers are less acidic (also called more alkaline).

SOLUTION:
basic