Use This Inventory Information for the Month of September to Answer

Use this inventory information for the month of September to answer the following question. $\begin{array}{llll}\text { Sept. } & 1 & \text { Beginning inventory } & 10 \text { units @ } \$ 120 \\& 5 & \text { Purchase } & 60 \text { units @ } \$ 112 \\& 14 & \text { Sale } & 40 \text { units }\\&21& \text { Purchase } &30 \text { units @\$116 }\\&30 &\text { Sale }& 28 \text { units } \end{array}$

Assuming that a perpetual inventory system is used,what is ending inventory (rounded) under the average-cost method?

A) $3,666
B) $3,712
C) $3,208
D) $7,734