Answer: human resource management
Explanation: In simple words, human resource management refers to the process under which the organisation tries to provide better facilities to its employees so that they work hard and the firm could gain a competitive advantage.
In the given case, Henry ford was providing better wage to its employees than the competitors. This will decrease the labor turnover expenditure and boost the morale of employees.
Hence from the above we can conclude that this is an example of human resource management.