The Small City of Pleasantville Is Considering Building a Public

The small city of Pleasantville is considering building a public swimming pool that costs $1,000. Each resident's marginal benefit of the swimming pool is shown below. It takes a 4/5 majority to pass any tax measure, and all residents must vote. $$\begin{array} { | l | c | } \hline{ \text { Vater } } & \text { Marginal Benefit } \\\hline \text { Kyle } & \$ 420 \\\hline \text { Dylarn } & \$ 360 \\\hline \text { Frar1 } & \$ 350 \\\hline \text { Rorruie } & \$ 190 \\\hline \text { Sarn } & \$ 170 \\\hline\end{array}$$  
The total social benefit of the swimming pool is:

A) $1,490.
B) $1,000.
C) $1,590.
D) $1,120.