Final answer:
Angelina is a first-line manager, responsible for overseeing the daily operations and supervising the non-managerial employees of a specific work unit or department.
Step-by-step explanation:
Angelina is a(n) first-line manager. As a shift supervisor for a successful supermarket chain, she directs the work of as many as eight other cashiers. First-line managers are responsible for overseeing the daily operations and supervising the non-managerial employees of a specific work unit or department. They are typically at the lowest level of management and have direct contact with employees.