In Most Cases,at the Optimal Consumption Bundle

Multiple Choice

In most cases,at the optimal consumption bundle:

A) the consumer cannot increase utility without some change in market conditions or preferences.
B) the last dollar spent on each good brings the same amount of satisfaction to the consumer.
C) the marginal rate of substitution is equal to the absolute values of the slope of the budget constraint.
D) the indifference curve is just tangent to the budget constraint.
E) all of the above