Explanation:

- Option 1: Mechanical engineer

- Frederick Winslow Taylor was indeed a mechanical engineer by profession.

- He is known for developing scientific management theory, also known as Taylorism.

- His work revolutionized industrial efficiency with principles such as time studies and work standardization.

- Correct Answer

- Option 2: Mining engineer

- Some of Taylor's work experience was in a steel company, but his main focus was mechanical rather than mining.

- Option 3: Psychologist

- Taylor's work had psychological elements, like motivating workers, but he was not a psychologist by profession.

- Option 4: Human resource officer

- While Taylor's principles influenced human resource practices, he was not a human resource officer.