In MS-Office Word short cut key used to change case of selected text is:

Question

Accepted Answer

The correct option is (4):
The primary function of the Shift+F3 key combination in Microsoft Word is to cycle the selected text through the three most common case formats: Sentence case (capitalizing the first letter of the sentence), lowercase (all letters small), and UPPERCASE (all letters capital). This is an essential productivity shortcut for students and professionals as it allows them to quickly correct and standardize text formatting without needing to navigate to the "Change Case" function within the Home tab's Font group. By repeatedly pressing Shift+F3, users can effortlessly toggle between these case formats, ensuring that headings, titles, or entire paragraphs meet the required documentation standards.

The incorrect option is (1):
The shortcut Ctrl+F3 in Microsoft Word is associated with an advanced editing feature known as the "Spike." It does not change the case of selected text. Instead, Ctrl+F3 acts as a *Cut to Spike* command, which cuts the selected text and appends it to a special clipboard called the Spike. Unlike the regular clipboard which holds only the last item cut, the Spike can accumulate multiple items. You can then paste the entire collection of all text accumulated in the Spike using the shortcut Ctrl+Shift+F3. Therefore, its function is related to cutting and consolidating multiple pieces of text, not to altering the capitalization style.

The incorrect option is (2):
The shortcut Ctrl+F5 has a window management function within the MS Office application environment. It is not designed for text manipulation or formatting. Instead, Ctrl+F5 is used to restore the size of the current document window if it has been maximized or minimized. It toggles the window between its maximized state and its previous restored size. This action is unrelated to text formatting or the case of selected characters within the document, as it focuses entirely on manipulating the user interface and the size of the application's viewable area on the screen.

The incorrect option is (3):
The shortcut Alt+F3 is used to create a building block or AutoText entry from the selected text. Building blocks are reusable content, such as cover pages, headers, footers, or custom text boxes, that can be saved in the document templates for later reuse. When a user selects text and presses Alt+F3, a dialog box immediately appears, prompting them to name and save that selection as a reusable component. Consequently, while it utilizes selected text, its core purpose is to create a template element rather than to modify the case of the selected text.