Which three address ranges are used for internal private address blocks as defined by RFC 1918?()
A、0.0.0.0 to 255.255.255
B、10.0.0.0 to 10.255.255.255
C、172.16.0.0 to 172.16.255.255
D、172.16.0.0 to 172.31.255.255
E、127.0.0.0. to 127.255.255.255
F、192.168.0.0 to 192.168.255.255
G、224.0.0.0 to 239.255.255.255
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