Answer:
human relations approach
Explanation:
Based on the situation that is being illustrated in the question it seems that Barbara's style most closely resembles a human relations approach to management. This is because this approach focuses on forming work relationships with the employees and addressing their concerns as well as supporting and rewarding them for good performance, because it is believed that employees want to be part of a supportive team that focuses on personal and business growth. Which is what Barbara is doing by communicating with her employees regularly and making decisions based on the best interests of the organization as well as the employees.