What is a Sticky Connection?

A.
A Sticky Connection is a connection that always chooses the same gateway to set up the
initial connection.

B.
A Sticky Connection is one in which a reply packet returns through the same gateway as
the original packet.

C.
A Sticky Connection is a connection that remains the same.

D.
A Sticky Connection is a VPN connection that remains up until you manually bring it
down.