The Following Table Shows Erica's Utility for Muffins and Grapefruit

Multiple Choice

The following table shows Erica's utility for muffins and grapefruit.

-Refer to the above information to answer this question.If Erica has a budget of $5 and the price of both muffins and grapefruit are $1,what will be her optimal purchase?

A) 1 muffin and 4 grapefruit.
B) 2 muffins and 3 grapefruit.
C) 3 muffins and 2 grapefruit.
D) 4 muffins and 1 grapefruit.
E) 5 muffins.