Wexler Corporation has established a new policy on employee e$-$mails. The policy reads: "All e$-$mail sent using the company server is the property of the company and is not private. Supervisors and managers shall have the right to review such e$-$mails. Inasmuch as the company is liable for e$-$mail content, it reserves the right to review it$."$ The policy:

is an example of private law.

is an example of statutory law.

is an example of constitutional law.

is never enforceable.