Can you implement a complete IPv6 deployment without IPv4 addresses?

Can you implement a complete IPv6 deployment without IPv4 addresses?

A.
No. SmartCenter cannot be accessed from everywhere on the Internet.

B.
Yes. Only one TCP stack (IPv6 or IPv4) can be used at the same time.

C.
Yes, There is no requirement for managing IPv4 addresses.

D.
No. IPv4 addresses are required for management.