30. When the price of a commodity rises, we can expect a. marginal utility of the last unit purchased will rise. b. marginal utility of the last unit purchased will fall. c. marginal utility of the last unit purchased will be unaffected. d. purchases to rise because of the increased marginal utility. Table 5-1 Number of milkshakes consumed 1 2 Total utility from milkshakes (in $) $23 $28 $31 Number of sandwiches consumed 1 2 3 Total utility from sandwiches (in $) $40 $43 $45 31. Taule 5-1 gives information on George's total utility from consuming milkshakes and sandwiches, If George's income this week is $15, milkshakes are $3 each, and sandwiches $2, he will maximize his utility if he buys a. three milkshakes and two sandwiches. b. three milkshakes and three sandwiches. c. no milkshakes and as many sandwiches as possible. d. two milkshakes and three sandwiches