The following configuration line was added to router R1 Access-list 101 permit ip 10.25.30.0 0.0.0.255 any What is the effect of this access list configuration?（）
- A permit all packets matching the first three octets of the source address to all destinations
- B permit all packet matching the last octet of the destination address and accept all source addresses
- C permit all packet matching the host bits in the source address to all destinations
- D permit all packet from the third subnet of the network address to all destinatio