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: If Mona adds more water to her cauldron of melting rock, what will happen to the melting point of that rock? 
 Option1: increase 
 Option2: decrease 
 Explanation: As the amount of water increases, the melting point of rock decreases.

SOLUTION: decrease

PROBLEM: Question: Mary loves to observe the Sun. If she's looking at the Sun one day and notices more sunspots then she usually sees, what is happening to the amount of solar energy reaching the Earth? 
 Option1: increasing 
 Option2: decreasing 
 Explanation: When there are more sunspots the Sun is more active and there are more solar storms and more of the Sun's energy reaches the Earth.

SOLUTION: increasing

PROBLEM: Question: If a Geiger counter is silent in an area, there is _____ reason to worry about radiation. 
 Option1: little 
 Option2: much 
 Explanation: The faster the clicks of a Geiger counter occur, the higher the level of radiation.

SOLUTION:
little