Al Arwa LLC manufactures a line of equipment that it sells to wholesalers. The company sold 5,550 items of this type this year, which also has a one-year guarantee if the equipment fails. Based on experience, 15% of the items sold are returned for repair. In each case, 45% of the items returned can be repaired at a cost of RO150, while the remaining 55% need significant repair at a cost of RO350. What should be the amount of provisions to be made?

a) OMR 216,450

b) OMR 160,256

c) OMR 450,612

d) OMR 56,193