The benefit of the road repairs is that it would be useful for economic and social activities in the state.
While the benefits of the school construction is that it would enhance the education environment in the state, create jobs and also facilitate learning.
The best way for the state government to determine the budget to fund is to establish the project that would provide the most benefit to the users and also to the state in general.
The opportunity cost would be the cost of picking one of these choices over the other.
If the school construction is picked, the opportunity cost would be the benefits of the road that would be lost.
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