why answer is B ?

: ( Complete Mark 0.00 out of 1.50 2 Doo s loaded on a some destin XYZ Inc. needs 315 kgs of a material per month. It costs OMR 100 to make and receive an order, and it takes 16 work days to receive it. The annual holding cost is 25 % of purchase price. The price OMR 2 per kg. The company is operating 6 days per week. What is the minimum total annual cost in OMR? Round-up to the nearest integer MG-2021 .a 7500 hamukh Consi ales of OMR 21 ock level of 2 nual holding percent of cluding the con 5 million a yea lued at OMR te of returns o .b 8175 O O O O MG-2021 .C 9000 .d None is correct onde .e 8300 Invento The correct answer is: 8175