The following expression models the total money earned by setting up a food stall at a funfair, where x represents the number of cheeseburgers sold.

what does the constant term in the above expression represent?

a.
the constant -10 represents the cost of each cheeseburger at the food stall.
b.
the constant -10 represents the cost of setting up the food stall even if no cheeseburgers were sold.
c.
the constant -10 represents the total money earned by setting up the food stall.
d.
the constant -10 represents the maximum number of cheeseburgers sold by the food stall at the funfair.