What is the most common reason that customers lack sufficient security?

What is the most common reason that customers lack sufficient security?

A.
Customers have not adequately analyzed their strategies and implementations.

B.
Customers see security devices as easily sidestepped and their networks threatened anyway.

C.
Customers have not appropriately assessed the size and scalability of their network structures.

D.
Customers do not trust in innovative solution technologies that will protect their networks.