Cobb Company's Accounting Records Show the Following at the Year

Cobb Company's accounting records show the following at the year ending on December 31, 2018: $$\begin{array} { l r } \text { Purchase Discounts } & \$ 11,200 \\\text { Freight - In } & 15,600 \\\text { Purchases } & 402,000 \\\text { Beginning Inventory } & 47,000 \\\text { Ending Inventory } & 57,600 \\\text { Purchase Returns } & 12,800\end{array}$$ Using the periodic system, the cost of goods sold is

A) $378,000.
B) $383,000.
C) $393,600.
D) $404,200.