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: If Milo traps gases in a small chamber after having them in a large chamber, what will happen to the rate of collisions between gas particles? 
 Option1: increase 
 Option2: decrease 
 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.

Answer: increase


Question: Question: If Mona is building a circuit and she adds more resistors in series, what happens to the total resistance of the circuit? 
 Option1: increases 
 Option2: decreases 
 Explanation: As more resistors are added in series, the total resistance of the circuit increases.

Answer: increases


Question: Question: Erin was going to see the elephants in the jungle. If the jungle is larger than it was 20 years ago, then what has likely happened to the population of the elephants? 
 Option1: it has decreased 
 Option2: it has increased 
 Explanation: The forest habitat of elephants has also decreased in size due to humans moving in, so the numbers of the elephants have decreased.

Answer:
it has increased