Maximum Social Advantage Is Achieved

Maximum Social Advantage is achieved,

A) at the point where the marginal social benefit of public expenditure and the marginal social sacrifice of taxation are equated
B) at the point where the marginal social benefit of public expenditure is higher than the marginal social sacrifice of taxation
C) at the point where the marginal social benefit of public expenditure is lower than the marginal social sacrifice of taxation
D) at the point where the marginal social benefit of public expenditure and the marginal social sacrifice of taxation are zero