Step 1: Understanding the Concept:
Management theories evolved from absolute, rigid principles to flexible, context-dependent models.
Step 2: Detailed Explanation:
Let us examine the core focus of the listed management theories:
- (A) Classical Theory: Assumed there is "one best way" to manage, relying on fixed structural rules and efficiency.
- (B) Human Relation Theory: Focused heavily on social factors, motivation, and human behavior inside the workplace.
- (C) Modern Theory: Encompasses the Systems Approach and the Contingency (or Situational) Approach.
The Contingency approach of Modern Theory explicitly states that there is no single ideal way to organize or manage.
Instead, the optimal management style is situational and depends on internal and external environmental variables.
- (D) Behavioural Theory: Focuses on individual psychology and group behaviors in organizations.
Therefore, the situational approach is a key component of Modern theory.
Step 3: Final Answer:
The theory that emphasizes a situational approach toward management is Modern theory.