New Normal University Has Found It Necessary to Institute a Crime-Control

New Normal University has found it necessary to institute a crime-control program on its campus to deal with the high costs of theft and vandalism. The university is now considering several alternative levels of crime control. This table shows the expected total annual costs and benefits of these alternatives. The marginal benefits of crime control for Level Two are

A) $ 90,000.
B) $40,000.
C) $ 60,000.
D) $200,000.