Brook Side Reported Sales of $738,000 and Cost of Goods

Brook Side reported sales of $738,000 and cost of goods sold of $584,000 for the year.The firm had a beginning inventory of $51,000 and an ending inventory of $46,000.What is the length of the inventory period?

A) 15.24 days
B) 15.16 days
C) 31.19 days
D) 29.87 days
E) 30.31 days