All of the Following Are Appropriate Methods for Promoting Maintenance

All of the following are appropriate methods for promoting maintenance and generalization of newly trained behaviors EXCEPT:

A) gradually adding stimuli from the natural environment into the training setting.
B) gradually altering the training antecedents to match naturally occurring ones.
C) training others to reinforce the behavior in the natural setting.
D) varying cues in the natural environment to match those in the training setting.