Which key combination isused for changing the case of the selected text in MS-Word ?

The correct answer is (b) Shift + F3.

To change the case of the selected text in MS-Word, you can use the keyboard shortcut Shift + F3. This will cycle through the following case options:

• Lowercase
• Uppercase
• Title Case
• Sentence Case
• Toggle Case

For example, if you have the word “hello” selected and you press Shift + F3, the word will change to “HELLO”. If you press Shift + F3 again, the word will change to “hello”. You can continue to press Shift + F3 to cycle through the different case options.

The other options are incorrect.

• Option (a), Ctrl + F3, is used to find and replace text in MS-Word.
• Option (c), Alt + F3, is used to open the WordArt gallery in MS-Word.
• Option (d), Alt + F4, is used to close the active window in MS-Word.