What best describes the following configuration example of allowas-in? router bgp 100
address-family ipv4 vrf CustomerA
neighbor 195.12.4.5 remote-as 123
neighbor 195.12.4.5 activate
neighbor 195.12.4.5 allowas-in 2

A.
Permits incoming BGP updates defined by access-list 2.

B.
Permits incoming BGP updates defined by class-map 2.

C.
Permit incoming BGP updates defined by route-map 2.

D.
Permits incoming BGP updates with no more than two occurrences of AS 100 in the AS path.

E.
Permits incoming BGP updates with no more than two occurrences of AS 123 in the AS path.