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: What will happen to the levels of pollution on Earth if the population increases? 
 Option1: they will rise 
 Option2: they will fall 
 Explanation: For example, more people on the Earth means more people contributing to global warming and pollution.
[A]: they will rise


[Q]: Question: If Milo is using an electromagnet to lift a car and he wants to decrease the strength of it, what should he do to the current? 
 Option1: decrease it 
 Option2: increase it 
 Explanation: If the current passing through the circuit breaker increases, the electromagnet becomes stronger.
[A]: decrease it


[Q]: Question: What happens when you lighten a rocket? 
 Option1: goes higher 
 Option2: falls down 
 Explanation: By using multiple stages, empty fuel containers could drop away. This reduced the mass of the rocket so that it could fly higher.
[A]:
goes higher