Which is not an advantage of virtual private networks $($VPN$)$ for data communications?

Question $28$Select one:

A$.$

They are less expensive than private leased lines because they use the public Internet to carry information.

B$.$

Remote users can use broadband connections rather than make long distance calls to access an organization's private network.

C$.$

They ensure the confidentiality and integrity of the data transmitted over the Internet without requiring encryption.

D$.$

They can reduce communication costs dramatically because VPN equipment is cheaper than other remote solutions.