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: What happens to John's risk of contracting a disease as he gets older? 
 Option1: it decreases 
 Option2: it increase 
 Explanation: The older a person is, the greater their chance of developing a cardiovascular disease.

SOLUTION: it increase

PROBLEM: Question: When we are increasing energy used while running what will happen? 
 Option1: speed up 
 Option2: slow down 
 Explanation: As the liquid particles lose energy, their movement slows down even more. As their movements become slower and slower, the attractive forces between become stronger.

SOLUTION: speed up

PROBLEM: Question: Ian was applying heat to a reactant. The rate of the reaction that occurs will now be 
 Option1: faster 
 Option2: slower 
 Explanation: When the temperature of reactants is higher, the rate of the reaction is faster.

SOLUTION:
faster