This individual worked to determine a "fair day’s work," or what an average worker could produce at a reasonable pace. This individual invented a large clock that could record time to 1/2000th of a second in order to aid in his motion studies.

(A)-Frederick W. Taylor
(B)-Max Weber
(C)-Frank Gilbreth
(D)-Henry Gantt

(C)-Frank Gilbreth

Explanation:

Option A is wrong because F. W. Taylor invented the time study that showed the employees ability to finish a task within the shortest possible time.

Option B is wrong because Max Weber is a famous sociologist.

Option D is wrong because Henry Gantt is recognised as one of the most influential person in the field of scientific management. He did not provide motion or time methods of study.

Option C is correct as Frank Gilbreth invented Motion Study to break down the task into separate pieces to ensure unnecessary things are not present in that motion study in 1948-1950. For motion study, Frank invented a huge clock to record the time.

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