Answer:
a. The overload principle
Explanation:
The overload principle -
The principle is used in the training session of any sports .
It refers to the method to improve the performance of any athlete by increasing the workout or practice session from time to time , is referred to as the overload principle .
The method is very crucial for the process of skill learning .
Hence , from the given scenario of the question ,
The correct answer is a. The overload principle .
