RJ Corporation Has Provided the Following Information About One of Its

Multiple Choice

RJ Corporation has provided the following information about one of its inventory items: $\begin{array}{clrr}\text { Date }&\text { Transaction } &\text { Number of Units }&\text { Cost per Unit }\\\hline1 / 1 & \text { Beginning Inventory } & 400 & \$ 3,200 \\6 / 6 & \text { Purchase } & 800 & \$ 3,600 \\9 / 10 & \text { Purchase } & 1,200 & \$ 4,000 \\11 / 15 & \text { Purchase } & 800 & \$ 4,200\end{array}$ During the year, RJ sold 3,000 units. What was ending inventory using the average cost flow assumption under a periodic inventory system?

A) $640,000.
B) $840,000.
C) $770,000.
D) $880,000.