Different application packages are built for different purposes, and building a website requires a package specifically designed to write and structure web content such as HTML, CSS, and linked pages.
Adobe Dreamweaver is a dedicated web development application that lets users design, code, and manage websites, including writing and previewing HTML and CSS and organising the files that make up a site. This makes it the tool from the list built specifically for developing websites.
The remaining options serve entirely different purposes. Microsoft PowerPoint is presentation software used to build slideshows. Microsoft Excel is spreadsheet software used for calculations, data analysis, and tabulated records. Figma is primarily a design and prototyping tool used to create user-interface layouts and graphics, and while designers may use it to plan how a website should look, it is not itself a tool for actually developing and coding a functioning website in the way Dreamweaver is.
When a question asks which package is used to "develop" a website, look for the tool built around actually writing and assembling web pages, not one used only for presentations, spreadsheets, or visual mock-ups.