Marcia has two credit cards and would like to consolidate the two balances into one balance on the card with the lower interest rate. the table below shows the information about the two credit cards marcia currently uses.

card a
card b
amount
$1,389.47
$1,065.32
apr
16%
12%
monthly payment
$39.38
$28.05

after 4 years, approximately how much will marcia have saved in interest by consolidating the two balances?
a.
$1,890.24
b.
$133.92
c.
$543.84
d.
$1,346.40