Step 1: Understanding the Concept:
The Hawthorne Experiments (late 1920s) led to the rise of the Human Relations school of management.
Step 2: Detailed Explanation:
- A is correct: It was led by Elton Mayo and focused on how social and psychological factors affect productivity, moving away from Taylor's scientific management.
- B is incorrect: The experiments were conducted at the Hawthorne Works of the Western Electric Company in Cicero, Illinois, USA, not the U.K.
Step 3: Final Answer:
Only statement A is correct.