Prepending: Used to manipulate path preference by making a route less attractive. It increases the AS path length, which can influence other ASes to prefer alternative, shorter paths.
CD.
If 192.168.2.0/24 is advertised in the order 65001 65002 65003, the route will look like this:
192.168.2.0/24 65003 65002 65001 I
Therefore the answer is D(prepend)
Pls read again, its AC.
Append means it adds the ASPath to the route and this is done just from ebgp.
Prepend is used when we want to influence the routes.
When a BGP router advertises a prefix, it will include its own AS number to the left of the AS path attribute - aka prepending. Therefore C and D is correct
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