What is the "universal undo" shortcut on keyboards?
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Crtl+z
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Crtl+s
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Ctrl+Tab
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Alt+F4
A
Correct answer
Explanation
Ctrl+Z is the standard keyboard shortcut for undo across virtually all applications and operating systems. While the option has a typo (Crtl instead of Ctrl), it's clearly referring to the correct command. Alt+F4 closes windows, Ctrl+S saves, and Ctrl+Tab switches between tabs.