The consumer utility-maximizing rule is satisfied when (check all answers that apply)
Select one or more:
a.the slope of budget line is tangent to the slope of the indifference curve.
b.Px/Py = MUx/MUy (where the P's are prices of goods and MU's are marginal utilities of goods)
c.Marginal Rate of Transformation = Marginal Rate of Substitution.
d. MUy/Py = MUx/Px (where the P's are prices of goods and MU's are marginal utilities of goods)