You are hired to design a solution that will improve network availability for users on a campus network with routed access. If the budget limits you to three components, which three components would you recommend in your design proposal? (Choose three.)
A. redundant power supplies in the access routers
B. standby route processors for SSO in the core routers
C. standby route processors for SSO in the distribution routers
D. standby route processors for SSO in the access routers
E. replace copper links between devices with fiber links
