Answer: D

Trademark rights are rights that are not material and do not belong to “things” in property law. However, under special circumstances, they can become objects of property rights under legal provisions. ; The surface of Mars is not controllable by humans, is not disposable, and does not belong to "things"; things in my country's property law only refer to physical objects, and rights, behaviors, intellectual achievements (including computer programs), etc. are not things in property law. Land belongs to real estate and is a “thing” in property law.