AutoCorrect automatically fixes common typing mistakes as you type by replacing misspelled words and adjusting capitalization on the fly. This is exactly what you want when you want typos corrected without manual intervention—typing something like teh or recive is instantly turned into the correct word. Spelling & Grammar checks errors after the fact and suggests corrections (you choose whether to apply them), Translate changes language, and Balloons relate to comments/markup—not automatic text correction. So the feature that best fits “auto-corrects common typing errors as you type” is AutoCorrect.

To box the entire page area, you use a page border. This feature draws a border around the page edges, so everything on the page—text, images, and a table—becomes enclosed inside the box. It applies to each page in the document, giving a consistent boxed look across multiple pages. A frame is a boxed object you insert around a portion of text, not intended as a page-wide border and can affect how text flows. A border around a table only outlines the cells of that table, not the rest of the page. The term “Document Border” isn’t the standard Word name for this feature; the characteristic option is Page Border. Therefore, Page Border is the correct choice.

Customizing the Quick Access Toolbar is what you’d use to make your most-used commands available at a glance. This small bar sits above the ribbon and you can tailor it with the commands you reach for most often, so you can click them from anywhere in Word without switching tabs. To set it up, open File, go to Options, and choose Quick Access Toolbar to add or remove commands, or simply right-click a command and pick Add to Quick Access Toolbar. The other backstage areas serve different purposes: General Options adjusts overall Word behavior, Backstage Settings isn’t a standard option for command access, and Open Documents shows recently opened files rather than providing quick command access. So, the best choice for quick access to frequently used commands is the Quick Access Toolbar.

Adjusting column width automatically is what this item is testing. When a table column is too narrow to show all of its content, using Autofit resizes the column to fit its contents, so every bit of text in that column becomes visible without manual dragging. In Word, the command is labeled Autofit, and it’s the standard way to make columns expand or shrink to accommodate the data inside them. This is why Autofit is the best choice here. Other terms like Auto Fit, Auto Size, or Resize aren’t the Word command used to automatically adjust a column to its content, so they wouldn’t reliably achieve the same result.