Keith Is Paid for Assisting a Welder on a Construction

Keith is paid for assisting a welder on a construction site. He also is adding to his welding skills by attending a local trade school. When he finishes his training program and demonstrates he has mastered specific skills, he will become a journeyman welder. Which statement best identifies that Keith is in an apprenticeship program?

A) It can't be an internship, because apprentices are paid, while interns are not.
B) Apprentices, unlike interns, do not learn on the job.
C) Apprentices have hands-on experience assisting a tradesperson.
D) Unlike interns, apprentices do not attend educational institutions.
E) Interns are more likely than apprentices to get admonished for their mistakes on the job.