Answer:
Termination of Sara's employment is an example of an "adverse employment action".
Explanation:
An adverse employment action is an action carried out by an employer against an employee, such that it has a negative effect on the employee's job.
Not every inconvenience in the workplace is an adverse employment action. For an action of an employer to be considered adverse, it must be one that materially affects the employee.
Examples include; demotions, pay cuts, termination of employment.