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.
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
Example solution: once
Example explanation: As mentioned in the passage that I then flip one side of the omelette; it is clear that omelette is flipped one time only.

Problem: Passage: Today I went to the airport to catch my flight to Las Vegas . First , I had to drop my car off at the parking lot and take the shuttle bus to the airport . After I arrived at the airport I located my airline , Southwest , and checked in with the automatic check-in machine to get my boarding pass . As always , the lines were very long and I had to wait my way through the ropes that always make me feel like I am part of herd of cattle . When I reached the checkpoint , I showed my ID to the security agent and placed my things into the x-ray machine . I proceeded to the x-ray booth until I was told to proceed . I then grabbed my stuff from the conveyor belt and was finally on my way to my gate where I sat for a few minutes before boarding my flight . Question: After getting their boarding pass, where did they make their way? Option1: To feel like part of a herd of cattle. Option2: To wait in line for the checkpoint.
Solution: To wait in line for the checkpoint.