In a Budget Line/indifference Curve Diagram,at the Consumer's Equilibrium at the Best

Multiple Choice

In a budget line/indifference curve diagram,at the consumer's equilibrium at the best affordable point,

A) any movement upward or downward on the budget line will move the consumer to a less preferred point.
B) any movement to the northeast to higher indifference curves moves the consumer to a less preferred point.
C) the slope of the budget line exceeds the marginal rate of substitution by as much as possible.
D) the budget line has a positive slope and the indifference curve has a negative slope.
E) the budget line has a negative slope and the indifference curve has a positive slope.