Different Microsoft Office applications are built for different kinds of tasks: one is optimised for text documents, another for slide-based presentations, and another for working with numbers arranged in rows and columns.
Microsoft Excel is a spreadsheet program, and its primary purpose is to solve problems involving numbers. It organises data into cells arranged in rows and columns, and provides built-in formulas and functions, for example \( \text{SUM} \) and \( \text{AVERAGE} \), that let a user perform calculations, build budgets, analyse data, and create charts from numeric information.
Writing essays is the role of Microsoft Word, and showing a slide presentation is the role of Microsoft PowerPoint, so those choices describe the wrong application entirely. Keeping students updated on Microsoft's latest products is not a function of any Office application; it is not something the software is designed to do.
When identifying the purpose of an Office application, match the type of content it is designed to handle, text, slides, or numbers, to the correct program name.