Power is an entity’s or individual’s ability to control or direct others, while authority is influence that is predicated on perceived legitimacy. Consequently, power is necessary for authority, but it is possible to have power without authority. In other words, power is necessary but not sufficient for authority.

Pressure influence tactic depicts the strategy to influence an individual or group of individuals by making demands, intimidating or threatening them, for the main purpose of persuading them to cooperate or support with a given request. Therefore, option D is the answer.

Expert power

Power gives people the ability to control themselves and their environment, and this control is considered a fundamental human need.

Possessing power means that a person is able to influence others more easily and perform his/her job more effectively. The possession of power transforms individuals psychologically, shapes their behaviour, and produces an enduring effect on individual status and influence with teammates.

Difference Between Power and Influence Power is capacity to get others to act based on positional authority that is exercised over others; often leading to resentment. Influence is the ability to modify how a person develops, behaves, or thinks based on relationships and persuasion; often leading to respect.

Six Sources of Influence

• 1.) Personal Motivation.
• 2.) Personal Ability.
• 3. ) Social Motivation.
• 4.) Social Ability.
• 5.) Structural Motivation.
• 6.Structural Ability. The final source of influence moves away improving personal mastery and social capital and focuses on the environment.