A local city that operates automobile parking facilities is evaluating a proposal that it erect and operate a structure for parking in the city's downtown area. Three designs for a facility to be built on available sites have been identified in Table P16.11 (all dollar figures are in thousands).
At the end of the estimated service life, whichever facility had been constructed would be torn down, and the land would be sold. It is estimated that the proceeds from the resale of the land will be equal to the cost of clearing the site. If the city's interest rate is known to be 10%, which design alternative would be selected on the basis of the benefit-cost criterion?
Table P16.11

Cost of site Cost of building Annual fee collection Annual maintenance cost Service life (years) Design A $240 2.200 830 410 30 Design B $180 700 750 360 30 Design C $200 1,400 600 310 30