Refer to the exhibit.
XR1 must have XR4 as the primary exit point for only the first three subnets received from AS 100
and may not impact the rest of the subnets. Which configuration on XR1 is correct?
A.
prefix-set PREFER
100.100.100.0/30 le 32
route-policy LP
if destination in PREFER then set local-preference 200 endif
B.
route-policy LP
if destination in (100.100.100.0/30 le 32) then set localpreference 200 else pass endif
C.
prefix-set PREFER
100.100.100.0/29 le 32
route-policy LP
if destination in PREFER then set local-preference 200 else pass
endif
D.
route-policy LP
if destination in (100.100.100.0/29 le 32) then set local
preference 200 else set local-preference 100 endif