Colletti Company Recorded the Following Data The Weighted Average Unit Cost of the Inventory at January

Colletti Company recorded the following data: $\begin{array}{lrrr} &\text { Units }&&&\text { Unit }\\\text { Date }& \text { Received}& \text { Sold }& \text {On Hand }&\text { Cost }\\\text { 1/1 Inventory }&&& 600 & \$ 2.00 \\1 / 8 \text { Purchased }&900&& 1.500 & 2.20 \\1 / 12 \text { Sold }&&1,200 & 300 &\end{array}$

The weighted average unit cost of the inventory at January 31 is:

A) $2.00.
B) $2.10.
C) $2.12.
D) $2.20.