Under the Provisions of the Electronic Communications Privacy Act, in Which

Under the provisions of the Electronic Communications Privacy Act, in which of the following situations is an employer permitted to monitor private telephone conversations of an employee?

A) The employee does not have the employer's permission to speak to a customer.
B) The employee uses a telephone in an office other than the employee's office.
C) The employee uses a telephone during normal working hours.
D) The employee has consented to the monitoring.