John wants to buy a new motorcycle Unfriendly Finance Co. has agreed to lo him $8,000 for a two-year term at an annual interest rate of 24% (compounded monthly) John would be required to make monthly payments, with the first payment due one month from now What is the amount of John's monthly payment?

a. $422.97 

b. $414.68 

c. $333.33 

d. $257.81