Based on the show ip route isis output on R1, which statement is true?
A.
The R1 IS-IS router is an ASBR.
B.
The R1 IS-IS router is performing route aggregation and is suppressing the more specific
10.1.0.0/23 prefix.
C.
Thei su 10.1.0.0/23 route is a suppressed route.
D.
Thei su 10.1.0.0/23 route is an IS-IS external route.
E.
Thei su 10.1.0.0/23 route is a summary route.
F.
The R1 IS-IS router is an ABR that belongs to multiple IS-IS areas.