Which format reflects that of the IPv6 global unicast address?
A. global prefix (16 bits), subnet ID (16 bits), interface ID (64 bits)
B. global prefix (48 bits), subnet ID (16 bits), interface ID (64 bits)
C. global prefix (16 bits), subnet ID (64 bits), interface ID (48 bits)
D. global prefix (64 bits), subnet ID (48 bits), interface ID (16 bits)