D. (y) and (z) only E. (x) only 8. Suppose that the town of Belville is considering hiring an additional police officer. The reduction in crime is estimated to be worth $20 for each of the 3,500 residents in Belville. What should the town of Belville do? A. Hire the police officer if the cost of the new officer is less than $70,000. B. Hire the police officer only if the benefit to the residents exceeds $70,000. C. Hire the police officer because additional safety is priceless. D. Do not hire the police officer because the costs exceed the benefits. E. Do not hire the police officer because the benefits exceed the costs..