Which two of these statements are true of IPv6 address representation?（）
- A There are four types of IPv6 addresses: unicast, multicast, anycast, and broadcast.
- B A single interface may be assigned multiple IPv6 addresses of any type.
- C Every IPv6 interface contains at least one loopback address.
- D The first 64 bits represent the dynamically created interface ID.
- E Leading zeros in an IPv6 16 bit hexadecimal field are mandatory.