To solve this question, the user needs to be familiar with the concept of a domain and its attributes.

A domain is a set of possible values for a specific attribute. It is used to define the type of data that can be stored in a database table column or an object property. The attributes of a domain specify the characteristics of the data that can be stored in it.

Option D is incorrect because "Header" is not a valid attribute of a domain. The attributes of a domain include:

A. Type: Specifies the data type of the attribute, such as integer, string, or date.

B. Fixed values: Specifies a set of allowed values for the attribute, such as a list of predefined options.

C. Length: Specifies the maximum length of the attribute's value, such as the maximum number of characters in a string.

Therefore, the answer is: D