Figure 6-22 the Following Information Is Available for Department C

Figure 6-22 The following information is available for Department C for the month of August:
Materials are added at the beginning of the process. Inspection takes place at the 50 percent point in the conversion process to determine spoiled units. Round unit costs to two decimal places. The company uses the weighted average cost flow assumption.
Refer to Figure 6-22. Department C's conversion cost per unit using the weighted average method is

A) $2.18.
B) $2.22.
C) $2.31.
D) $3.20.