1. Trademark is the object of protection stipulated by China's trademark law and belongs to intellectual property rights.
2. Copyright, China's Copyright Law clearly stipulates that it belongs to intellectual property rights.
3. Idea, there are three objects protected by patent law: invention, utility model and design. (Invention refers to a new technical scheme proposed for a product, method or its improvement; Utility model refers to a new practical technical scheme for the shape, structure or combination of products. Judging from the difference between patent law and copyright law, its essence is to protect ideological content. But on closer examination, "rules and methods of intellectual activities" belong to the concept category, not the object of patent protection, so from a rigorous point of view, 3 is not the correct answer, but from the author's intention, 3 is to be chosen.
4. Software is protected by software copyright in China and belongs to intellectual property rights.
5. Brand refers to the company's name, trademarks of products or services, and other intangible assets that can be distinguished from competitors' logos, advertisements and other forms of the company's unique market image (see/wiki/%E5% 93% 81%E7% 89% 8c). Trademarks undoubtedly belong to the object of intellectual property protection, but company names are generally protected by anti-unfair competition, and other intangible assets are generally protected by anti-unfair competition. Since the concept of brand has a broader meaning than trademark, I personally think it should not be selected, but I am not particularly sure about it.
I hope it helps.