Al Maha company has 15% scrap rate. It produces 2500 units in a ten-hour day. The units are produced by 4 workers who use 400 kilos of raw materials. Workers are paid 10 Omani Rials per hour; raw material cost is 0.5 Rial per kilo. The overhead cost is 50 Omani Rials. Calculate the Multifactor productivity (labor traw material + overhead). Round to the nearest two decimal place. O a. 3.27 Ob. None is correct C. 4.27 d. 3.08 e. 1.13