Question $1($Mandatory$)(1$ point$)$

Gary set up his factory by departments based on the type of equipment used. Each person in the department was trained only on one specific machine to do one specific task. Each employee became quite expert in their job and knowledgeable about maintaining their specific piece of equipment. Gary is following which of Fayol's $14$ management principles?

$$ Centralization

Unity of command

Unity of direction

Division of work