Definition: 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.
Input: Passage: As an avid mountain biker , I have found myself in many precarious situations . From run ins with bears , to falling into prickly bushes . It is always an adventure when you are riding your mountain bike through the great outdoors . I have had numerous flat tires during my years riding . The first flat tire I ever had left me stranded miles away form civilization . I had to hoof it out on foot , carrying a broken bike . From then on I purchased and kept many bicycle tire tubes in my riding gear . To replace a bicycle tire is now a simple process for me . You break the bead on the old tire shell and pull it slightly to the side . You then stuff the new rubber tube where the old one was , making sure the nipple matches with the nipple hole . You then move the outer tire back into position and pump up the tire . Question: Who works the tube out from between the rim and the tire itself? Option1: the professor Option2: The mountain biker.
Output:
The mountain biker.