Maria Spends Her Afternoon at the Beach,paying $2 to Rent

Maria spends her afternoon at the beach,paying $2 to rent a beach umbrella and $10 for food and drinks,rather than going to a movie.The total cost of going to the beach is

A) zero,because the money she spent was for food,drinks and an umbrella rather than to enter the beach.
B) the $12 she spent on the umbrella,food and drinks.
C) only $2 because she would have spent the money on food and drinks whether or not she went to the beach.
D) the movie she missed seeing.
E) the movie she missed seeing plus the $12 she spent on the umbrella,food,and drinks.