Under which method of training, a trainee is put under the guidance of a master worker?

Apprenticeship training

The correct answer is option 3- Apprenticeship training.

Apprenticeship programmes put the trainee under the guidance of a master worker. These are designed to acquire a higher level of skill. People seeking to enter skilled jobs, to become, for example, plumbers, electricians or iron-workers, are often required to undergo apprenticeship training. These apprentices are trainees who spend a prescribed amount of time working with an experienced guide, or trainer. A uniform period of training is offered to trainees, in which both fast and slow learn here, are placed together. Slow learners may require additional training.