Omar wants to implement balance or debt wage method in an Integrated circuit manufacturing company. If a worker's time wage is 400 OMR per week and piece wage is 5 OMR per unit, prospective monthly pay wage is as shown below. How much will be his monthly pay? WEEK TIME WAGE PIECE WAGE CREDIT DEBIT BALANCE 1 400 OMR 150 X 5 OMR 350 0 350 2 400 OMR 75 X 5 OMR 0 25 325 3 400 OMR 100 X 5 OMR 100 0 425 4 400 OMR 90 X 5 OMR 50 0 475 3 4 O a. 1125 b. 1600 c. 2075 O d. 475