One Potential Problem with Self-Directed Training Is That

One potential problem with self-directed training is that:

A) many learners dislike it, and they become unmotivated.
B) some learners use poor learning strategies, which makes this technique less useful.
C) most learners find it unrealistic, which makes it difficult to transfer training.
D) some learners miss the trainer-trainee interaction and are less satisfied with the training as a result.