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.
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Question: Question: Jan had a very low heart rate, but was perfectly healthy, indicating that her heart expels blood in amounts that are
Option1: greater
Option2: lesser
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: greater

Question: Question: John was weighing some materials in his science lab. He observed that as objects had greater density, the heaviness of the objects
Option1: Increased
Option2: Decreased
Explanation: A given volume of a denser substance is heavier than the same volume of a less dense substance.

Answer: Increased

Question: Question: John is playing around with different temperature settings on his bunsen burner. If he heats up a gas in the burner and then lets the gas cool down, what would happen to the gas particles as the temperature got lower?
Option1: they would slow down
Option2: they would speed up
Explanation: If the gas is cooled, the particles will move more slowly, because they will have less energy.

Answer:
they would slow down