$\text { Dave's Consumer Surplus on DVD Rentals per Week }$

$\text { Dave's Consumer Surplus on DVD Rentals per Week }$
$\begin{array}{|c|c|c|}\hline \begin{array}{c}\text { Number of DVDs } \\\text { rented per week }\end{array} & \begin{array}{c}\text { Amount } D \text { ave is willing to } \\\text { pay to rent this DVD (\$) }\end{array} & \begin{array}{c}\text { Dave's consumer surplus } \\\text { on each DVD rental if price } \\\text { is } \$ 5 \text { each }\end{array} \\\hline \text { 1st } & 10.00 & \\\hline \text { 2nd } & 8.00 & \\\hline \text { 3rd } & 6.50 & \\\hline 4 \text { th } & 5.50 & \\\hline 5 \text { th } & 5.00 & \\\hline \text { 6th } & 4.50 & \\\hline 7 \text { th } & 4.25 & \\\hline\end{array}$
$\text { TABLE 6-2 }$
-Refer to Table 6- 2. How many DVDs will Dave rent per week such that the consumer surplus on the last unit is zero?

A) 1
B) 3
C) 5
D) 6
E) 7