Lucas Corporation uses the weighted-average method in its process costing system. Data concerning the first processing department for the most recent month are listed below:

Beginning work in process inventory:

900

Units in beginning work in process inventory

$9,600

Materials costs .

$7,700

Conversion costs

60%

Percentage complete with respect to materials

45%

Percentage complete with respect to conversion

8,100

Units started into production during the month

6,900

Units transferred to the next department during the month

$115,800

Materials costs added during the month .

$120,500

Ending work in process inventory:

 

Units in ending work in process inventory

2,100

Percentage complete with respect to materials

75%

Percentage complete with respect to conversion

20%

The cost per equivalent whole unit for the month in the first processing department is closest to:

A) $28.18

B) $36.75

C) $32.31

D) $34.25