For an Employer/employee Relationship to Exist, Which of These Must

For an employer/employee relationship to exist, which of these must be TRUE?

A) The employer directs the employee to report to work and assigns work responsibilities
B) The employer controls the times and location the employee is to report to work
C) Both A and B must be true for an employer/employee relationship to exist
D) Either A or B must be true, but not necessarily both