Which component of the Cisco 800, 1800, 2800, and 3800 Series ISRs can be used to enable important s

Which component of the Cisco 800, 1800, 2800, and 3800 Series ISRs can be used to enable
important security and storage capabilities?

A.
onboard USB 1.1 ports

B.
inline PoE

C.
Ethernet backup port

D.
BRI