You Notice Traffic Destined to 172

You notice traffic destined to 172.31.17.0/24 is traversing an OSPF path rather than a BGP path. Referring to the exhibit, what is causing this behavior?

A) The 172.31.17.0/24 BGP route has a higher route preference.
B) The 172.31.17.0/24 route does not have a valid BGP entry.
C) The 172.31.17.0/24 BGP route is missing a valid default next hop.
D) The 172.31.17.0/24 BGP route's outgoing interface is down.