Virtually every movie theater charges different admission prices to moviegoers who belong to different groups, such as students, adults, senior citizens, children, those attending morning showings, those attending showings at night, and so on.The same theaters also charge the same, quite high, prices for concession items to all types of moviegoers.While the definition of a monopoly seems simple, it can be difficult to apply in practice.Do you think a local movie theater is a monopoly. Why or why not?