Hello!

Can you help me solve this?

Suppose that Fiona spends all of her income on 10 units of good X and 14 units of good Y. Fiona's marginal utility from the 10thunit of good X is 24 utils, and her marginal utility from the 14thunit of good Y is 20 utils. If the price of good X is $8 per unit and the price of good Y is $5 per unit, then Fiona should:

A) continue to purchase 10 units of good X and 14 units of good Y.

B) purchase more than 10 units of good X and less than 14 units of Y.

C) purchase more than 10 units of good X and more than 14 units of good Y.

D) purchase less than 10 units of good X and more than 14 units of good Y.