Choose the best answer to the following question.

Suppose you deposited $90 per month into a savings plan into a savings plan for 8 years and at the end of that period your balance was $19,000. What was the amount you earned in interest?

Choose the correct answer below:

(A) It was $20,720. Calculate the amount deposited over 8 years and then add it to the balance of $19,000

(B) It was 20,720. Multiply the balance of $19,000 by the number of years, 8

(C) It is impossible to compute without knowing the APR. To find the correct answer, multiply each $90 deposit by the APR, and then multiply the product by the number of months in 8 years

(D) It was $10,360. Divide the balance of $19,000 by the number of years, 8.

(E) It was $10,360. Calculate the amount deposited over 8 years and then subtract it from the balance of $19,000.

(F) It is impossible to compute without knowing the APR. To find the correct answer, divide the number of payments by the APR.