Which of These Is a Risk to a Firm That

Which of these is a risk to a firm that provides on-the-job-training to its employees?

A) The per-employee cost of the training is higher for groups of employees than if each employee sought individual training.
B) Attending on-the-job-training reduces the incentive for ambitious employees to gain new skills.
C) While the firm is covering the cost of the training, the employee could leave to work for another employer after receiving the training.
D) Employees may lose confidence that the employee thinks he or she has skills.