The Following Information Was Available from the Inventory Records of a Company

The following information was available from the inventory records of a company for July 2008: $\begin{array} {| l|l| l|l| } \hline&& \text {unit }& \text {total }\\\hline& \text {units }& \text { cost}& \text { costs}\\\hline \text { Balance at July 1, 2008 .}&2,000&\$19.55&\$39,100\\\hline \text {Purchases: July \( 6,2008 \) . }&1,500&20.60&30,900\\\hline \text {July 16,2008 }&3,400&21.50&73,100\\\hline \text { Sales: July 7, 2008}&(1,800) \\\hline \text { July 31, 2008}&(3,200) \\\hline \text { Balance at July 31, 2008 .}&1,900\\\hline\end{array}$
Assuming that the company uses the periodic inventory system,what would be the inventory valuation at July 31,2008,using the weighted-average inventory method (rounded to the nearest dollar) ?

A) $39,046
B) $39,406
C) $39,900
D) $39,996