Suppose Lydia Owns the Only Lawn-Mowing Business in the Small

Suppose Lydia owns the only lawn-mowing business in the small town of Pleasant Pastures. There are 8 people each week whose lawns she might cut, each with a reservation price given in the accompanying table. Assume that the marginal cost of mowing each lawn is constant and equal to $25.  
$$\begin{array} { | c | c | } \hline \text { Custamer } & \begin{array} { c } \text { Reservition } \\\text { Price }\end{array} \\\hline \mathrm { A } & \$ 36 \\\hline \mathrm { B } & \$ 34 \\\hline \mathrm { C } & \$ 32 \\\hline \mathrm { D } & \$ 30 \\\hline \mathrm { E } & \$ 28 \\\hline \mathrm { F } & \$ 26 \\\hline \mathrm { G } & \$ 24 \\\hline \mathrm { H } & \$ 22 \\\hline\end{array}$$ If Lydia charges the same price to all of her customers, then how many lawns should she mow each week?

A) 2
B) 3
C) 4
D) 5