A full binary tree with height 4 has ______ nodes.

Three lines at the end of an arrow in the diagram of a binary tree indicate that the subtree ____.

A. has three branches B. has three children C. is full D. is empty

Which of the following text box fill options allows you to add a fill of horizontal or vertical lines?

A. Pattern fill B. Solid fill C. Picture or texture fill D. Gradient fill