Carlos plans to start studying a master’s degree that begins in 3 years. Payments consist of 4 installments of $ 8000 at the beginning of each semester. How much does Carlos have to deposit at the end of each month in a savings account that pays him an effective annual interest rate of 4% in order to pay for his studies?

a. $ 839

b. $ 889

c. $ 917

I can’t understand the problem and it doesn’t come out, please I need help