Here's a little explanation as well as a copyable version of all the Creative Commons licenses, to go along with my main post about licensing your work.

The parts:
-Attribution:
  -BY: If someone uses your work to make something new, they have to credit you somewhere.
-Sharing / Modification:  
  -None: You don't care how your work is shared nor if any modified versions are shared
  -SA: If someone modifies or makes something with your work, they have to let others do the same.
  -ND: If someone shares your work, it cannot have any modifications
-Commercial use:
  -None: You don't care if someone makes money off of your work.
  -NC: If someone wants to use your work in a commercial aspect, they must get permission from you

The licenses:

CC BY:


This work is licensed under a Creative Commons Attribution 4.0 International License.

CC BY-SA:


This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

CC BY-ND:    


This work is licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License.

CC BY-NC:


This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

CC BY-NC-SA:


This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

CC BY-NC-ND:


This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Notes:
If you need more clarification, hop on over to the page on their site about these licenses.
If you need some more help deciding which license to use, you can use their license chooser tool.