Answer:
To modify a text box, shape, or SmartArt graphic, the user must first select the Text box
Step-by-step explanation:
Any image whose size, shape, color or if other characteristics has to be changed it needs to be selected first. Here in this case the user wants to modify the text box, so he needs to first click on the “Text box” object.
When the user clicks on the object, the relevant options like, size, adjustment tools, coloring tools, etc will be appeared. This statement holds good not only for the drawing object, but for any text and other aspects used.