What icon should you click to add text to a diagram?

The text icon is specifically designed for the purpose of adding text to a diagram. When you click this icon, it allows you to input text directly onto the diagram, which is essential for labeling different areas, providing descriptions, or sharing important information relevant to the diagram’s components. This functionality is crucial in creating clear and effective diagrams that communicate the necessary details visualized in the layout.

The other choices may involve features or tools related to diagramming but do not specifically focus on directly adding textual content. Instead, they may refer to different actions or functionalities that do not facilitate the specific task of inserting text. Understanding which icon corresponds to the function of text addition is essential for efficient diagram creation.