program inputs

How closely do government expenditures measure opportunity cost for each of the following program inputs?
b. Land to be used for a nuclear waste storage facility that is owned by the government and located on a military base.
c. Labor for a reforestation program in a small rural community with high unemployment.
d. Labor of current government employees who are required to administer a new program.
e. Concrete that was previously poured as part of a bridge foundation.
costs of $10 million; project W, a wilderness area with restricted public access, has estimated benefits of $5 million and costs of $1 million. In addition, a road could be built for a cost of $4 million that would increase the benefits of project R by $8 million, increase the benefits of project F by $5 million, and reduce the benefits of project W by $1 million. Even in the absence of any of the other projects, the road has estimated benefits of $2 million.
a. Calculate the benefit-cost ratio and net benefits for each possible alternative to the status quo. Note that there are seven possible alternatives to the status quo: R, F, and W, both with and without the road, and the road alone.
b. If only one of the seven alternatives can be selected, which should be selected according to the CBA decision rule?