if something is copyright, how can it be used?

responses

only with credit

only with permission

with credit or in certain “fair use” cases

with permission or in certain “fair use” cases

All of the above responses are correct. If something is copyrighted, the general rule is that it cannot be used without the permission of the copyright owner. However, there are certain exceptions known as "fair use" cases, which allow limited use of copyrighted materials for purposes such as criticism, comment, news reporting, teaching, scholarship, or research. In some cases, the use of copyrighted material may be allowed if proper credit is given to the original creator or copyright holder. However, it's important to note that the specific guidelines and limitations vary depending on the country and legislation in question.