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: Ed is adding a resistor to a circuit. If he needs it to have more resistance, he should add a resistor that is 
 Option1: shorter. 
 Option2: longer 
 Explanation: Longer length resistors will offer more resistance than shorter resistors.

SOLUTION: longer

PROBLEM: Question: Chris was looking at some stars through a very large telescope. He noticed two stars. The first was a dull blue. The second was a darker blue. Compared to the bluer star, the star that is duller would be 
 Option1: colder 
 Option2: hotter? 
 Explanation: But, in stars, the bluer the star, the hotter it is, and the redder it is, the older and colder it is.

SOLUTION:
colder