Which of the Following Is True Regarding Private Employer Monitoring

Which of the following is true regarding private employer monitoring of employee e-mail on company-owned equipment?

A) There is a federal law prohibiting private employers from monitoring employee e-mail on company-owned equipment.
B) Most states have state laws prohibiting private employers from monitoring employee e-mail on company-owned equipment.
C) Most states allow private employers to monitor employee e-mail on company-owned equipment, but employees must first be warned that the e-mail will be monitored.
D) Most courts have upheld a private employer's right to monitor employee e-mail on company-owned equipment.