A series of equal end-of-quarter deposits of $1,000 extends over a period of three years. It is

Question:

A series of equal end-of-quarter deposits of $1,000 extends over a period of three years. It is desired to compute the future worth of this quarterly deposit series at 12% compounded monthly. Which of the following equations is correct?
(a) F = 4($l,000)(F/i4, 12%, 3)
(b) F = $1,000(F/M,3%, 12)
(c) F = $1,000(F/A, 1%, 12)
(d) F = $1,000(F/A,3.03%, 12)