Consider the market for DVD movies , TV screens, and tickets at movie theaters , a, for each pair , identify whether they are complements or substitutes *DVDs and TV screens *DVDs and movie tickets *TV Screens and movie ticket

Consider the market for DVD movies , TV screens, and tickets at movie theaters , a, for each pair , identify whether they are complements or substitutes
*DVDs and TV screens
*DVDs and movie tickets
*TV Screens and movie ticket