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.

Q: Question: If the speed of a stream decreases, the size of the particles carried in that stream 
 Option1: increase 
 Option2: decrease 
 Explanation: In erosion, a slower moving stream will only carry smaller particles.

A: decrease
****
Q: 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.

A: less
****
Q: Question: Brad wants to go to the gym more regularly, so that his muscles will get larger. Another aspect of having larger muscles means that Brad will likely be 
 Option1: stronger 
 Option2: weaker 
 Explanation: Exercising muscles increases their size, and bigger muscles have greater strength.

A:
stronger
****