The cost of a breakdown is $$2,000,$ and the cost of a preventive maintenance program is$$2,000$ per month. lf the preventive maintenance program is adopted, the probability ofa machine breakdown is negligible. How much better off per month would the firm be ifit adopted preventive maintenance?

a$.$ $$100$ worse off.

b$.$$$200$ worse cff

c$.$ $$100$ better off.

d$.$$$200$ better off.

$$2,000$ better off.