Step 1: Understanding the Concept:
A skill is the learned ability to perform an action with determined results with good execution, often within a given amount of time, energy, or both. The question asks for the most accurate statement about the nature of skills.
Step 2: Detailed Explanation:
(A) There is a change in attitude of individual skill: This statement is unclear and not a core definition of skill. While attitude can affect skill performance, this is not its definition.
(B) Skill is an inborn attribute: This is incorrect. An inborn attribute is an aptitude or talent. A skill, by definition, is developed and honed through practice, learning, and experience.
(C) Skill is acquired by training: This is the correct definition. Skills are not innate; they are developed through deliberate effort, practice, and training. For example, no one is born knowing how to play the piano or write code; these skills are acquired.
Step 3: Final Answer:
The defining characteristic of a skill is that it is learned and developed. Therefore, the statement "Skill is acquired by training" is correct.