5. The correct answer is B. Copyrights cannot be waived and cannot be used for profit-making commercial purposes without the permission of the rights holder.

6. The correct answer is D. If a trademark consists of a non-distinctive symbol, it is not a trademark, it is just a symbol. This example is the apple pattern used as the symbol of applesauce,

7. The answer is C. B has the copyright of the original work, A has the copyright of the movie script and B has the right to adapt the original work.