Which tool is used to thread text frames in InDesign?

• A. The selection tool.
• B. The Type Tool.
• C. The Pen Tool.
• D. The Rectangle Tool.

Answer: (A)

Threading text frames is a frame-level operation that uses the Selection Tool to connect frames by their ports. You select the first text frame with the Selection Tool, click its out-port (the little square at the bottom-right), and then click the next frame to create a continuous flow of text between them. This task is about linking frames, not editing the text itself. The Type Tool is for typing or editing content inside a frame, not establishing links between frames. The Pen Tool and Rectangle Tool are drawing tools for creating shapes and paths, not for connecting text frames.