If the net profit of the firm is OMR 280000 and the capital employed is OMR 1400000, then the return on capital employed will be 20%. During inflation with net profit calculated with replacement cost is OMR 150000 and the capital employed is OMR 2000000. Then the return on capital employed will be:

a) 14%

b) 6.82%

c) 7.5%

d) 9%