The correct answer is: are not covered by intellectual property protections.
Tangible property (physical items) and intangible property (such as intellectual property) are both types of property, but they are subject to different legal protections. Intellectual property protections specifically cover intangible assets, while tangible property is typically covered under property laws. Therefore, the statement can be misunderstood. Intellectual property protections specifically relate to intangible property, not tangible.