Which among the following is not a management thinker?

Correct option is D

Karl Marx is not a management thinker. He was a political economist, philosopher, and social theorist, best known for his works on class struggle, capitalism, and communism, such as Das Kapital and The Communist Manifesto. His theories relate to socio-economic systems, not principles of management.
On the other hand:
· F.W. Taylor → Father of Scientific Management
· Henry Fayol → Father of Modern Management; gave 14 principles of management
· Oliver Sheldon → Known for human relations and administrative management contributions
Thus, the correct answer is (d) Karl Marx.
Information Booster
1. Management thinkers focus on improving organizational efficiency, leadership, motivation, and work systems.
2. Taylor introduced time study, motion study, standardization, and scientific management.
3. Fayol developed the 14 principles of management and the five functions of management.
4. Sheldon emphasized human relations, ethics, and cooperation in management.
5. Karl Marx’s contributions shaped global political and economic ideologies, not management science.