The annual sales of a car are $1 billion (i.e. $1,000,000,000). The sale price is $32,400 per car. The cost of placing an order is $1,400. The annual carrying cost per car is 1% of the sale price. What is the optimal order quantity? (No Excel answers pls)

a.

511

b.

516

c.

521

d.

536

e.

365