What conclusions can you draw from research presented in the textbook on error-management training?

A) it is effective for performance during training but not for post-training performance
B) it is more effective for tasks that require routine expertise
C) it is more effective for the performance of tasks that require adaptive expertise
D) trainers should avoid using error-management training

The research presented in the textbook suggests that error-management training is more effective for the performance of tasks that require adaptive expertise, which involves being able to quickly adapt to changing circumstances and identify novel solutions to problems. It may still be somewhat effective for routine expertise as well, but it appears to be most effective for tasks that require more advanced cognitive skills. Therefore, choice C is the best conclusion that can be drawn from the research presented in the textbook.