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: Bob is testing samples of ocean water from different places. The sample of water from off India's coast has less dissolved carbon dioxide, than the sample of water from off the United States' coast. Therefore, the water from _____ coast is more acidic. 
 Option1: India's 
 Option2: United States' 
 Explanation: With higher levels of dissolved carbon dioxide in ocean water, the water becomes more acidic.
[A]: United States'


[Q]: Question: Eric adds gas to a 20ml container and Rita adds gas to a 10ml container. Which container holds less gas particles? 
 Option1: Rita 
 Option2: Eric 
 Explanation: In the larger container we will still have the same number of gas particles, but now they are filling a much larger space.
[A]: Rita


[Q]: Question: Ian wants to produce less pollutants, so he buys a car that is a plug-in hybrid. The car will run on electricity better if it's plugged in for a 
 Option1: longer time 
 Option2: shorter time 
 Explanation: Plug-in hybrids run for a longer time on electricity and so are less polluting than regular hybrids.
[A]:
longer time