Refer to the information in Q$11$ and Q$12.$

What is the optimal profit per year for this supermarket through the selling of this item?

$$\frac{19657\mathrm{.}5}{?}$ year

$$\frac{18654\mathrm{.}5}{?}$ year

$$\frac{16655\mathrm{.}5}{?}$ year

$$\frac{14663\mathrm{.}5}{?}$ year