Which of the following is NOT a classification of skill?

Dynamic skill is not a recognized classification of skill in sport and physical education. In skill classification, principles categorize skills based on various criteria.

Open skills are those performed in variable environments, requiring adaptability, like in team sports where opponents could alter the context of play.

Complex skills involve a higher level of difficulty and often require intricate movements or cognitive processes, such as gymnastics routines.

Gross skills focus on large muscle groups and involve movements like running or jumping, emphasizing strength and coordination.

The absence of 'dynamic skill' in these established classifications highlights its non-use in sports terminology, making it the correct choice for this question.