Question

the ____ is a hierarchical representation of a webpage and its content.
a.) data object model
b.) hypertext markup language
c.) cascading style sheet
d.) document object model

Explanation:

The Document Object Model (DOM) represents a webpage and its content in a hierarchical tree - like structure. Data Object Model is not related to webpage structure representation in this context. HyperText Markup Language (HTML) is used for structuring the content of a web - page but not a hierarchical representation in the sense of DOM. A Cascading Style Sheet (CSS) is used for styling web - pages, not for representing the hierarchy of a web - page and its content.

Answer:

d. Document Object Model