You are given a paragraph (Passage), a question (Question) and two answer options (Option1 and Option2). Your task is to find the correct answer (and return the string of the correct option, not option1/2) for the given question from the given options and based on the given passage. Answer of the question can be found directly from the passage.

Let me give you an example: Passage: Omelettes make a great breakfast , and I enjoy making them because they are very easy to cook . First , I get the eggs out and begin cracking them on the side of the bowl and dumping them into the bowl . I normally use two eggs whites and one whole egg to cut the calories . I add some salt and pepper to the mix for flavor . I pour the mixture into the hot frying pan . I make sure that I add some vegetable oil to the pan before I add the eggs though because I do n't want them to stick . As this occurs , I add some cheese or vegetable to the center of the egg mixture . Really , almost any type of cheese or vegetable makes a good omelette . I then flip one side of the omelette over on to itself to seal in the contents in the middle . It is then ready to serve ! Question: How many times is the omelette flipped? Option1: three times Option2: once
The answer to this example can be: once
Here is why: As mentioned in the passage that I then flip one side of the omelette; it is clear that omelette is flipped one time only.

OK. solve this:
Passage: When my friends were about to stay over at my wife and I 's house this past week , we knew that we had to clean the shower if they were going to use it . I got all of the cleaning supplies together out of the closet . I had a lot of cleaners and also a toilet bowl brush to help scrub the bottom of the shower .  I put the cleaner on the bottom of the shower and then waited awhile for it to work . After it was done cleaning , I sprayed some water over it to get it to work even better . When there was a chemical reaction , I looked at it to make sure it was working . Question: When did they scrub? Option1: after it was done Option2: past week
Answer:
past week