Refer to the exhibit.

A network architect has planned redundant links, as shown in the exhibit.
What should the network architect do to ensure that the redundant link design is truly resilient?

A.
Make sure that each HP 10508 switch is configured as a root in one Multiple Spanning Tree
Protocol (MSTP) instance.

B.
Implement features such as link aggregation, stacked meshing, and intelligent Resilient
Framework (IRF).

C.
Add another link between the Layer 2 switches and the core so that up to two links can fail.

D.
Implement a feature such as bidirectional forwarding detection (BFD) on each redundant link.