Which software tool is commonly used for CAD?

AutoCAD is a widely recognized software tool specifically designed for computer-aided design (CAD). It enables users to create precise 2D and 3D drawings, which are essential in fields such as engineering, architecture, and product design. AutoCAD provides a range of tools and functionalities tailored to drafting, modeling, and annotating designs, making it a standard in the CAD industry.

The other options do not serve the same purpose as AutoCAD. Microsoft Word is primarily a word processing program, while Excel is a spreadsheet application focused on data organization and analysis. Photoshop is a graphic editing software, mainly used for image manipulation and enhancement. Each of these tools is powerful in its respective field, but they are not designed for engineering design or drafting like AutoCAD. This specialized focus on engineering and architecture is what distinctly positions AutoCAD as the appropriate choice for CAD applications.