Mary Magnolia Has Variable Costs Equal to Y²/F, Where Y

Multiple Choice

Mary Magnolia has variable costs equal to y²/F, where y is the number of bouquets she sells per month and where F is the number of square feet of space in her shop.If Mary has signed a lease for a shop with 800 square feet, if she is not able to get out of the lease or to expand her store in the short run, and if the price of a bouquet is $6 per unit, how many bouquets per month should she sell in the short run?

A) 800
B) 400
C) 2,400
D) 3,600
E) 2,640