Which of the following answers is most true about the BGP Update message?

A.
It lists a set of path attributes, along with a list of prefixes that use those PAs.

B.
It lists a prefix/length, plus the PA settings for that prefix.

C.
It lists withdrawn routes, but never in the same Update message as newly advertised
routes.

D.
A single Update message lists at most a single prefix/lengtH.

Explanation:

The BGP Update message lists a set of PAs, plus any prefixes/lengths that use those PAs. It
can also list withdrawn routes in the same Update message as newly advertised routes. It
can also list multiple prefixes in a single Update message.