Which of the Following Describes a Disadvantage of E-Learning

Which of the following describes a disadvantage of E-learning?

A) It is difficult to customize e-learning to meet individual employee needs.
B) Learners often have little control over when and where the training is delivered.
C) Employees must be absent to attend the training.
D) Because it is self-paced,it is difficult to motivate trainees who have little intrinsic interest.