Which of the Following Barriers to the Transfer of Training

Which of the following barriers to the transfer of training have been found to be the most critical?

A) supervisor support and the social support system in an organization
B) time pressures and the lack of opportunities to use new skills
C) old habits that could not be changed and a reward system that is not congruent with new skills
D) the social support system and the work processes do not support the new skills