Answer:
B) to pay your roommate at least $100 but no more than $200 to clean up after herself
Step-by-step explanation:
According to the Coase theorem, you should work a solution that benefits both Linda and yourself. Since Linda's benefits for being messy = $100, and your costs for her being messy = $200, then you should offer Linda an amount of money that is between $100-$200 so that she cleans her mess.
The Coase theorem states that disputing parties should negotiate an economically optimal solution, regardless of what originated the problem or who had the property rights at the beginning.
In this case Linda is responsible for all the mess but it will not help you to just complain about it, instead you should find an economical solution to the problem.