Correct Answer:
B. Ctrl+W
The correct answer is Ctrl+W because it is the standard keyboard shortcut across virtually all modern web browsers to shut down the actively selected tab.
- Step 1 (Tab Management): Pressing Ctrl+W tells the browser container to terminate the individual tab in focus without closing the entire multi-tab window application framework.
- Step 2 (Cross-App Consistency): This shortcut functions uniformly across Google Chrome, Mozilla Firefox, Microsoft Edge, and Apple Safari profiles.
- Incorrect Options:
- Ctrl+X is incorrect because it executes a Cut action, moving selected text or assets to the system clipboard.
- Alt+F4 is incorrect because it targets the entire application, shutting down the browser program and all of its open tabs simultaneously.
- Shift+F4 is incorrect because it is an unrelated function key variant lacking tab-management properties.
The shortcut key to close a tab on most browsers is: (B) Ctrl+W.
Here’s a breakdown of the other options:
- Ctrl+X: This shortcut is typically used to cut selected text or objects, not to close tabs.
- Alt+F4: This shortcut often closes the entire application window, not just a specific tab.
- Shift+F4: Similar to Alt+F4, this shortcut might close the entire browser window depending on the program settings.