Refer to the Scenario.
A movie theater knows that there are two types of moviegoers: senior citizens and everyone else. For a particular movie, there are 20 senior citizens who will pay $6 for a ticket while there are 100 other people who will pay $10 for a ticket. There are 120 seats available in the theater. Suppose the cost to the movie theater of running the movie is $500, which includes the cost of the rights to the movie, a person to run the film, etc.
How much profit will the movie theater earn if it engages in price discrimination?

A. $620
B. $1,620
C. $500
D. $1,120