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 Jim increases the amount of field lines drawn what will happen to the strength of the field? 
 Option1: decrease 
 Option2: increase 
 Explanation: The more field lines that are drawn, the stronger the field.

SOLUTION: increase

PROBLEM: Question: A scientist sees that some galaxies are closer together than before, so they know that the universe's expansion is 
 Option1: less 
 Option2: more 
 Explanation: As the Universe expands, galaxies move further and further apart.

SOLUTION: less

PROBLEM: Question: Between air and water, the particles in _____ likely collide less. 
 Option1: air 
 Option2: water 
 Explanation: This means the rate of diffusion is much slower in liquids than in gases, because the particles of a gas are further apart and collide much less.

SOLUTION:
air