In studying K-12 education financing, policymakers would consider the marginal school as a. the school that would be affected the most by a given policy or legislation. O b. the schools that currently run a balanced budget prior to enacting a given policy or legislation. C. the schools for which the mathematical condition TR-TC = 0 applies prior to enacting a given policy or legislation. O d. All of the above are potential interpretations of the marginal school