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 lives in a country with poor access to food and another country begins reducing food supplies of her country, what happens to the death rate in Mona's country? 
 Option1: increases 
 Option2: decreases 
 Explanation: More recently, the death rate has fallen because of the availability of more food and medical advances.

SOLUTION: increases

PROBLEM: Question: If Mona is heating up popcorn in the microwave and the popcorn begins to move slower, what happens to the temperature of the kernels? 
 Option1: increase 
 Option2: decrease 
 Explanation: When particles move more slowly, temperature is lower and an object feels cooler.

SOLUTION: decrease

PROBLEM: Question: Eric has a soccer ball and kicks it into a rock of roughly the same size. The rock doesn't move and the ball bounces away. The ball is _____ dense than the rock. 
 Option1: less 
 Option2: more 
 Explanation: The more tightly packed the particles inside the material are, the more dense we say they are.

SOLUTION:
less