George Spends All His Income on Sandwiches and Juice

George spends all his income on sandwiches and juice. George's utility is maximized when he is consuming sandwiches and juice so that the

A) marginal utility from sandwiches equals the marginal utility from juice.
B) total utility from sandwiches equals the total utility from juice.
C) marginal utility per dollar spent on sandwiches equals the marginal utility per dollar spent on juice.
D) marginal utility from sandwiches is at a maximum.