On-the-job-training (OJT) refers to new or inexperienced employees learning through observing peers or managers performing the job and trying to imitate their behavior. OJT is preferred especially for training newly hired employees, upgrading experienced employees’ skills when new technology is introduced, cross training employees within a department or work unit, and orienting transferred or promoted employees to their new jobs. The most widely used OJT technique is apprenticeship which is a work-study method. Such training is a formal and long term on-the-job-learning. It traditionally involves having the learner/apprentice study under the supervision of a master craftsperson.

The forms of training under other options are among off-the-job training methods.

The correct answer is D.