Which of the following statements about service contracts, i.e., Certificate, software subscription, or support contract, is FALSE?

A.
A service contract can apply only for a single set of Security Gateways managed by the same Security Management Server.

B.
The contract file is stored on the Security Management Server and downloaded to all Security Gateways during the upgrade process.

C.
Most software-subscription contracts are permanent, and need not be renewed after a certain time passes.