What is the CD Key of NBA 2K14 (NBA 2K14)

I xs, but if you want to play alone then Cd key is not needed

SphereOfActivity
and how to play alone?

jack_161_eng
Where you need to register at the entrance to the game, just exit it. Enter only the date of birth, and you can skip the rest.

Please tell me NBA 2k14 cd key.