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