Answer: First line manager
Step-by-step explanation:
The first line manager basically operate the various types of tasks in the specific department such as assigning the specific task, monitoring and also managing the overall overflow in an organization.
According to the given question, the first line manager is also known as supervisor where they can make the short team decisions and also directing the non-managerial task to the employees in an organization.
Therefore, First line manager is the correct answer.