Store A uses the newsvendor model to manage its inventory. Demand for its product is normally distributed with a mean of 600 and a standard deviation of 100. Store A purchases the product for $30 each unit and sells each for $50. Inventory is salvaged for $10. What is its expected inventory if Store A's order quantity is 550 units? Use table 13.4.

A.

40

B.

20

C.

30

D.

60