The management function that Markus perform is planning.
Planning in management refers to steps to be taken in order to achieve an organization set goals and objectives. It means changes and challenges to anticipate, and how to utilise the available human and material resources to reach the expected outcome.
With regards to the above, Marcus is putting in place resources to achieve the organization's goals by taken steps like inspection, training and employee motivation.
Hence , the management function that Markus perform is planning.
Learn more about planning here : https://brainly.com/question/24864915