instruction:
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.
question:
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.
answer:
less


question:
Question: If someone has a smaller than average physical heart then it will beat _____ in order to pump blood. 
 Option1: more 
 Option2: less 
 Explanation: When the heart expels more blood with each stroke, the heart has to beat less often in order to maintain the same volume of blood flow.
answer:
more


question:
Question: Jim is comparing two cells. One seems to have more activity then the other. Will the cell exhibiting more activity have 
 Option1: more mitochondria 
 Option2: less mitochondria 
 Explanation: Cells that are very active would typically have more mitochondria than cells that are less active.
answer:

more mitochondria