Which of the following describes the difference between a network hub and a network switch?

Which of the following describes the difference between a network hub and a network switch?

A.
A hub has an uplink port to add another hub for expansion. A switch does not.

B.
Hubs intelligently direct traffic and switches repeat all traffic.

C.
A switch has an uplink port to add another switch for expansion. A hub does not.

D.
Hubs repeat all traffic and switches analyze and intelligently direct the traffic.