What tool is best for creating a placeholder frame for a graphic?

What will be an ideal response?

You can use either the Rectangle tool or the Rectangle Frame tool to create a
frame for an imported graphic. The Rectangle tool creates an unassigned frame;
the Rectangle Frame tool creates a graphics frame. You can import a graphic
(by using either the Place command or by dragging and dropping a graphic file)
into a frame created with either of these tools. The Rectangle Frame tool is often
used to create placeholder frames for graphics because an empty frame created
with this tool is displayed with an X through it to indicate there is no content.