Analyzing the causes of blocked progress arising in a plateau in learning, if a student's learning curve shows a flat performance level for a long time, and thereafter a sudden sharp rise in the curve is observed due to physical rest, increase in motivation, or the use of a new teaching method, which of the following statements is most authoritative regarding this entire process from the perspective of the Theory of Mental Fatigue and the decline of interest?

A plateau in learning represents a stage during the learning process where improvement in performance temporarily stops. This situation mainly arises due to mental fatigue, decline in motivation level, use of old or inadequate teaching methods, and increase in complexity. When the student is provided with proper motivation, rest, and innovative teaching methods, the plateau is broken and the learning curve begins to rise again. For more detailed information, you can view the Wikipedia reference.