Keith, a Member of the Electrician's Union, Recently Achieved the Classification

Keith, a member of the electrician's union, recently achieved the classification of journeyman. This means that Keith

A) is a contingent worker.
B) passed a written exam, but is still working to learn the basic skills needed to be a carpenter.
C) has successfully completed his apprenticeship program.
D) is an apprentice and still on the journey of becoming a certified professional carpenter.