Answer:
The correct answer is 3. under copyright.
When using materials that are under copyright, it is essential to obtain permission from the copyright holder before using them in any way that goes beyond the scope of fair use or any other applicable exceptions. Copyright law grants the copyright holder exclusive rights to control the reproduction, distribution, display, and performance of their creative works. Using copyrighted materials without permission can infringe upon the rights of the copyright holder and may lead to legal consequences. Therefore, it is crucial to seek proper authorization when dealing with copyrighted materials.