Developing human capital is essential to maintaining a competitive advantage in today's knowledge economy. Efforts and initiatives to develop human capital should be directed: a. At top managers. b. At human resource departments. c. At the employees themselves. d. Throughout the firm at all levels.

Letter d is correct. Throughout the firm at all levels.

Explanation:

The most appropriate option for this issue is that the development of human capital must be directed to the entire company at all levels.

The human capital in a company corresponds to all employees, which contains a set of competences and skills that integrated will contribute to generate competitive advantage in the current knowledge economy and consequently contribute to the company's success in the market.

Developing human capital should be the responsibility of all levels of the organization, as the valorization of employees will contribute to their development, personal and professional growth, increase motivation and job satisfaction, which generates greater productivity and results.

Currently, the business world is increasingly globalized, and this requires more suitable professionals, with a global stance, new ideas and knowledge so that the organization maintains the innovation necessary to remain in the market.

Therefore, it is necessary that human capital development actions, such as courses, training, incentives, etc., be implemented together with the mission, vision and organizational values, in order to create a positive organizational culture focused on the development of human capabilities.