Skoro mnie i forumowiczom nie wierzysz, to może Adobe Staff cię przekona?:
https://forums.adobe.com/thread/1602831
By using it for your own profession to be used only by you, you can choose between any option but to get the CC used by your staff or other member of the organisation, Team needs to be used.
If you are using the retail for your own profession then you get 20GB or 2gb as per the individual plan purchased where as CCT with single seat with provide you access with 100GB of storage space.
Regards
Rajshree