In a base e-Commerce module design, which routing statement is correct?

A.
Routing is mostly static

B.
Hardcoded IP addresses are used to support failover

C.
Inbound servers use the CSM or ACE as the default gateway.

D.
VLANs between the access layer switches are used for FHRP protocols.

Explanation:
https://www.safaribooksonline.com/library/view/foundation-learning-guide/9780132652933/ch07.html
“Base Design Routing Logic Routing in this e-commerce module design is mostly static, using VIP addresses to support failover.”