You can choose between six different Creative Commons licenses. These licenses provide a standardized way to grant others permission to use your work under copyright law. The type of license you select lets users of your work know the ways in which they can use it. Detailed information on the different licenses provided in the links
CC BY (Attribution)
CC By-SA (Attribution-ShareAlike)
CC BY-NC (Attribution-NonCommercial)
CC BY-NC-SA (Attribution-NonCommercial-ShareAlike)
CC BY-ND (Attribution-NoDerivatives)
CC BY-NC-ND (Attribution-NonCommercial-NoDerivatives)
Creative Commons Public Domain Dedication
CC0 (aka CC Zero) is a public dedication tool, which allows creators to give up their copyright and place their works into the worldwide public domain.