Which statement about the behavior of OSPF on a hub-and-spoke topology is true?

Which statement about the behavior of OSPF on a hub-and-spoke topology is true?

A.
Additional host routes are added to the routing table on a NBMA network type.

B.
The DR and BDR election occurs regardless of the underlying OSPF network type.

C.
The DR election is a challenge unless a point-to-point network type is used.

D.
Traffic does not need to traverse the hub to reach the spokes.