Which two statements about BGP confederation architecture are true?
A. The intraconfederation EBGP default TTL value between sub-ASes is 1
B. The AS_SET and AS_SEQ components help prevent loops inside a sub-AS
C. The ASN of a confederation is excluded from the AS_PATH path length calculation
D. The intraconfederation EBGP default TTL value between sub-ASes is 255
E. IBGP sessions inside a sub-AS have a default TTL of 1
