What is one technique that Velázquez uses to create the illusion of depth in Las Meninas?

What detail is explicit from this paragraph?

Anarrative piece of are ? a. tells a story or series of event b. serves as a remembrance of an event person c. display the likeness of a person, in order to document their existence d. relates the lives of important individuals

What is a principle of design that repeats elements to create good visual flow?