If a Box of Strawberries Has a Marginal Utility to You

If a box of strawberries has a marginal utility to you of 30 and its price is $5, while a box of blueberries has a marginal utility to you of 10 and its price is $2, then if you were thinking of the next purchase

A) strawberries are a better buy than blueberries
B) blueberries are a better buy than strawberries
C) either blueberries or strawberries will do, you value them equally
D) neither will do because one has a higher marginal utility while the other has a lower price
E) you should buy both strawberries and blueberries