Which statement is true about "fading"?

Fading is a process that involves gradually decreasing the assistance or reinforcement provided during training as the learner increasingly demonstrates competence. Instead of being an instantaneous change, fading allows learners to take on more responsibility for their learning and skills at a pace that suits their progress. This gradual approach helps to ensure that skills are firmly established before support is lessened, promoting greater independence and mastery over time.

The other choices don't accurately reflect the nature of fading. For instance, it does not occur only at the end of training; rather, fading is incorporated throughout the training process. Additionally, it is not an instant process, and rather than being something to avoid, fading is a key technique in effective training to promote autonomy in learners.