Step 1: Understanding the Concept:
Shortcut keys are used to perform common tasks quickly in Windows.
Closing an application is a frequent task.
Step 2: Key Shortcut:
Alt+F4 is the standard keyboard shortcut to close the currently active application window in Windows.
Ctrl+F4 is used to close a document or tab within an application.
Step 3: Analyzing the Options:
• (A) Ctrl+F4: Closes a document or tab, not the entire application.
• (B) Alt+F8: Not a standard Windows shortcut for closing.
• (C) Alt+F4: Closes the active application. Correct.
• (D) Shift+F4: Not a standard Windows shortcut for closing.
Step 4: Final Answer:
Therefore, option (C) is correct.