Give a short description of each of the following license types in your own words.

CC BY
CC BY-SA
CC BY-ND
CC BY-NC
CC BY-NC-SA
CC BY-NC-ND

Of the six licenses, which type is the most restrictive in terms of how you can use the work? Which type is the least restrictive? Answer in complete sentences.

1. CC BY: This license allows others to distribute, remix, adapt, and build upon your work, even commercially, as long as they credit you for the original creation. This is the most flexible and least restrictive license.

2. CC BY-SA: This license allows others to remix, adapt, and build upon your work, even for commercial purposes, as long as they credit you and license their new creations under the same terms. This ensures that new derivatives are also available for sharing and reusing.

3. CC BY-ND: This license allows others to redistribute your work, both commercially and non-commercially, as long as it remains unchanged and they give you credit as the original creator. No derivative works are allowed.

4. CC BY-NC: This license allows others to remix, adapt, and build upon your work non-commercially, and although their new works must also acknowledge you and be non-commercial, they don’t have to license their derivative works on the same terms.

5. CC BY-NC-SA: This license allows others to remix, adapt, and build upon your work non-commercially, as long as they credit you and license their new creations under the same terms. This means that new derivative works must also be non-commercial and shared under the same license.

6. CC BY-NC-ND: This license is the most restrictive, allowing others to download and share your work as long as they credit you, but they can't change your work in any way or use it commercially.

In summary, the CC BY-NC-ND license is the most restrictive in terms of how you can use the work, while the CC BY license is the least restrictive.