Miguel, Maria, and Marcos all would like a place to sit while waiting at their children's bus stop. The neighborhood association is considering installing several park benches at the bus stop. Miguel values the benches at $$20,$ Maria at $$30,$ and Marcos at $$40.$ The park benches and labor for installation cost $$100.$ If Miguel, Maria, and Marcos are the only residents who value the benches, what should the neighborhood association do$?$

a$.$ Install the park benches because people like places to sit.

b$.$ Do not install the park benches because the costs outweigh the benefits.

c$.$ Do not install the park benches to prevent the Tragedy of the Commons problem of overuse.

d$.$ Install the park benches because the benefits outweigh the costs.