The Picture Tools contextual tab displays only when an image is selected

Because these components rely on the appearance and behavior of the underlying operating system components, there is little that can be done by the programmer to change their properties.

A) Swing B) AWT C) Container D) JFC

Using a _____ element directly below the header element and then inserting the navigation links in this element ensures that the links appear near the header, where visitors can access them easily.?

A. ?nav B. ?class C. ?div D. ?lnk