Concept:Plateau in a learning curve refers to a period where no visible progress occurs, often due to mental or physical tiredness from repetitive practice.
Explanation:A learning curve shows three stages: slow beginning, steep progress, and finally a plateau.
In the plateau stage, the learner has already mastered the skill but feels bored or fatigued due to repetition.
This boredom reduces motivation and halts further improvement.
Fatigue, not maturation or interest, is the primary cause of this stagnation.
Teachers can overcome a plateau by introducing new or varied methods to re-engage the learner.
Thus, the plateau is directly caused by fatigue from overlearning or monotony.
Answer:The correct option is fatigue (C).
