The principles of training are the key elements which must be implemented by the trainer for a successful training process. The principles of good training includes ;
Been purposeful : The training should have a defined purpose for which it is been conducted.
organization : A good training should be well organized.
Practice and feedback : practice makes perfect therefore trainees are supposed to practice what they learn and provide feedback.
Variety
Hence we can conclude that The option that correctly lists the five principles of good training is Purpose, Organization, Practice, Feedback, Variety