The roles and responsibilities of human resource management have evolved primarily because of changes in the law that rewrote many traditional practices and

a) Organizations' recognition of employees as their ultimate resource.

Explanation:

The evolution of the human resources sector in a company had its main milestone from the moment that companies began to be seen as an organic structure.

The changes in the legislation also influenced the evolution of HR, because according to the fact that employees started to have greater legal protection over their labor rights, HR practices were focused on investment in the development of employees' capacities and well-being, in addition to the selection of professionals with ideal personality profiles to assume a position in the company.

Therefore, currently the human resources of a company is geared towards professional training and support to the demands of the employee, as the current business management focused on human capital guarantees advantages of an organizational climate favorable to innovation, a more motivated and more loyal worker, the which guarantees significant strategic advantages in the market.

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the correct answer is b.)