After completing a training program many of the trainees are having trouble applying what they learned in training on the job. They have contacted the trainer for assistance. What should the trainer do to help them?

A) relapse prevention
B) self-coaching
C) booster session
D) upward feedback

A booster session is a follow-up training session designed to reinforce the learning that took place during the initial training program. This can help trainees apply what they learned on the job and address any difficulties they are experiencing. The trainer can assess where the trainees are struggling and offer additional guidance and support. This may include strategies for applying the learning to specific situations or more opportunities to practice skills. The booster session can also provide an opportunity for trainees to ask questions and share their experiences, which can help them better understand how to apply what they learned.