Southeast Wood Products, Inc. reports sales of $20,000,000 and inventory of $4,000,000. Southeast's inventory possesses significant economies of scale. Therefore, if the firm's sales increase by 10%, Southeast's inventory will ________ and if Southeast's sales decrease by 10%, Southeast's inventory will ________.

A) increase by more than 10%; increase by more than 10%

B) decrease by more than 10%; decrease by more than 10%

C) increase by more than 10%; decrease by less than 10%

D) increase by less than 10%; decrease by less than 10%