Answer:
c. the profit that the theatre chain will make above its break-even point
Explanation:
Like every business, theatres and theatre chains have cost too, and they have to operate with a profit. After reaching the break-even point (nut), the theatre is covering all of its costs. Every dollar of revenue "above the nut" is a profit.
Subsequently, the theatre's management decides how to distribute the profit, having in mind various stakeholders (distribution firms, exhibition firms...).