10.A consumer maximizes total utility when all available income is spent and
(A)the marginal utility per dollar for the last unit of each good purchased is equal for all goods.
(B)the marginal utility for the last unit of each good purchased is equal for all goods.
(C) total utility from all goods purchased is equal.
(D) the dollars spent on the last unit of each good purchased is equal for all goods.
(Figure for question 11 is provided in the image)