What is the most common purpose of a virtual private network implementation?

A.
A virtual private network (VPN) helps to secure access between an enterprise and its partners when
communicating over an otherwise unsecured channel such as the Internet.

B.
A virtual private network (VPN) helps to secure access between an enterprise and its partners when
communicating over a dedicated T1 connection.

C.
A virtual private network (VPN) helps to secure access within an enterprise when communicating
over a dedicated T1 connection between network segments within the same facility.

D.
A virtual private network (VPN) helps to secure access between an enterprise and its partners when
communicating over a wireless connection.

Explanation:
A virtual private network (VPN) helps to secure access between an enterprise and its partners
when communicating over an otherwise unsecured channel such as the Internet.