A State of Consumer Equilibrium for Two Goods Consumed Exists

Multiple Choice

A state of consumer equilibrium for two goods consumed exists when the:

A) marginal utility of all goods is the same for the last dollar spent on each good.
B) marginal utility per dollar's worth of two goods is the same for the last dollar spent on each good.
C) price of two goods is the same for the last dollar spent on each good.
D) marginal cost per dollar spent on two goods is the same.