The price of a video is ​$4 and the price of a dinner is ​$16. from this we know that a consumer who is maximizing utility will

a. buy enough of the two goods such that the marginal utility from the last video is four times greater than the marginal utility from the last dinner consumed.

b. buy enough of the two goods such that the marginal utility from the last dinner consumed is four times greater than the marginal utility from the last video.

c. buy four times as many dinners as videos.

d. buy four times as many videos as dinners.