Which of the following is the proper response to an IT manager objection about the security of a Cisco Collaboration Architecture? Select exactly 1 answer(s) from the following:

A.
Security is an integral part of the Cisco Collaboration Architecture and is built into various components rather than as a separate layer of defense.

B.
Total security is an illusion; every solution is vulnerable to a certain extent.

C.
A single-vendor Cisco Collaboration Architecture is by nature more secure than a best-of-breed solution that integrates different systems.

D.
Cisco uses third-party applications to secure collaboration solutions appropriately.