Workers in the burger store were helping out the new employee. This gives rise to a spirit of mutual trust and belongingness among the teams. Identify the principle followed in the burger store.

The correct option is Esprit-De-Corps.

Explanation:
Henri Fayol's management principle of Esprit de Corps emphasizes the promotion of team spirit, harmony, and mutual trust among employees. It focuses on building a strong sense of unity and belongingness within the organization.
When workers in the burger store help out a new employee, it fosters cooperation, develops mutual trust, and builds a sense of belongingness among the team members. Therefore, this action directly aligns with the principle of Esprit de Corps.