The following unit data were assembled for the assembly process of Super Co$.$ for the month of April. Direct materials are added at the beginning of the process. Conversion costs are added uniformly over the production process. The company uses the FIFO method.

Line Item Description Units

Beginning work in process, $60\%$ completed $5,000$

Units started in April $48,000$

Ending work in process, $30\%$ completed $4,000$

The number of equivalent units produced with respect to conversion costs is

a$.46,200$

b$.50,200$

c$.48,000$

d$.53,000$