Which of the following formulas represents the present value of an annuity of OMR 8000 received at the beginning of each year for the next fourth years? The first payment will be received today, and the discount rate is 8% Select one: a OMR 8000 {[ (1+.08)4 - 1] = 0.08)} b. OMR 8000 {[1-(1/(1.08)4 = (.08)} C. OMR 8000 {[1-(1/(1.04)*) = (04)} O d. OMR 8000 {[1-(1/(1.08)41 +0.08)} (1.08)