The Flynn Company began the period with $15,000 worth of raw materials. During the period they purchased an additional $17,000 worth of materials and issued $24,000 of materials for production. In addition, the company paid $8,000 for direct labor costs and $6,000 in manufacturing overhead costs. The balance in the company's Work-in Process inventory account at the end of the period was:
a. $38,000
b. $46,000
c. $32,000
d. $40,000