At the Optimal Consumption Bundle,the Marginal Rate of Substitution of Leisure

Multiple Choice

At the optimal consumption bundle,the marginal rate of substitution of leisure for consumption is equal to

A) the real wage and the budget line is tangent to an indifference curve.
B) minus the real wage and the budget line is tangent to the indifference curve.
C) the real wage and the budget line intersects the indifference curve.
D) minus the real wage and the budget line intersects the indifference curve.