Vuyani welds a one$-$fourth$-$inch diameter ball bearing and a three$-$eighth$-$inch diameter ball bearing on each end of an eight$-$inch diameter cylinder. Sure, the work is tedious, but he knows he$$s doing his part to keep this company running and lining his employer$$s pockets with sweet cash. His employer hopes to speed up this activity by hiring another skilled worker, and in doing so will:

A$)$ Subordinate the rest of the system

B$)$ Identify the constraint

C$)$ Exploit the constraints

D$)$ elevate the constraints

E$)$ elaborate the constraints