The correct answer is B. Copyright has not been abandoned, and it shall not be used for profit-making commercial purposes without the permission of the obligee.

6. The correct answer is D. If a trademark is composed of inconspicuous symbols, it is not a trademark, but a symbol. This example is the symbol of the apple pattern used in applesauce.

7. The answer is that C. B owns the copyright of the original work, while A owns the copyright of the script and the adaptation permission of the original work.