Carolyn Spends Her Income on Popular Magazines and Games for Her

Carolyn spends her income on popular magazines and games for her smart phone.If the price of a magazine is four times the price of a game and if Carolyn is maximizing her utility, she buys

A) both goods until the marginal utility of the magazine purchased is four times the marginal utility of the last game purchased.
B) both goods until the marginal utility of the last game purchased is four times the marginal utility of the last magazine purchased.
C) four times as much magazines as games.
D) four times as much games as magazines.