What Is the Meaning of the Term "Turnover" When Dealing

What is the meaning of the term "turnover" when dealing with people in the organization?

A) Turnover measures the departure of employees from the organization.
B) Turnover measures the rate at which the finished goods inventory is sold during the year.
C) Turnover refers to the mental attitude employees have about their job.
D) Turnover is based on the number of grievances submitted by employees.
E) Turnover measures the profitability of the firm per employee.