How would the situation change if the interest on Emma’s credit card were compounded annually rather than monthly, and she didn’t make any payments toward the balance? Select the correct answer from each drop-down menu.

After 4 years, Emma would owe approximately $ for her original purchase of $300.
A.525
B.545
C.435
D.480
It would take around years for her balance to increase from $300 to $450.
A.2.9
B.3.1
C.2.7
D.2.5