Step 1: Understanding the methods of training. 
  
There are several methods of training that organizations use to train employees, including job rotation training, on-the-job training, and apprenticeship training. All of these methods are well-established techniques for improving employee skills and performance. 
Step 2: Analyzing the options. 
  
(A) Job rotation training: Job rotation is a common training method where employees are moved through different positions or tasks to learn different skills. 
  
(B) On-the-job training: On-the-job training is a practical method where employees learn while working. It is one of the most commonly used methods of training. 
  
(C) Apprenticeship training: Apprenticeship training is a method where an individual learns a trade under the guidance of a skilled worker. It is a structured form of training in many industries. 
  
(D) None of these: Correct. All the mentioned methods (A, B, and C) are valid methods of training. 
Step 3: Conclusion. 
  
Since all the options (A, B, and C) describe valid training methods, the correct answer is (D) None of these.