Jason and Liam both applied for an auto loan at Earnest Bank. Jason has a credit score of 690, while Liam has a credit score of 580. If the bank approved Jason's loan application at 4.40% interest, what interest rate does Liam pay for the car loan if it's 4 percentage points higher than Jason's?
a) 4.44%
b) 7.84%
c) 8.40%
d) 14.40%