Chris has $100 to spend this month on movies and/or books. A movie costs $10 and a book costs $20. a) Draw Chris’s budget constraint (or budget line), with the number of movies purchased on the vertical axis. b) What is the opportunity cost of the second book? c) Indicate on your graph the combination point showing Chris consuming 10 movies and 6 books (label it a). What can you say about this particular point? d) List three changes that would allow Chris to consume both 6 movies and 3 books. Show the effect of each on her budget constraint on your graph.