Which of the following can be used to close an opened application?
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Alt + Esc
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Alt + C
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Ctrl + 4
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Alt + F4
Reveal answer
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Correct answer
Explanation
Alt+F4 is the universal Windows keyboard shortcut to close the active application or window. Ctrl+4 and Alt+C have no standard close function, while Alt+Esc cycles through open windows rather than closing them. Alt+F4 works consistently across almost all Windows applications.
AI explanation
Alt + F4 is the standard Windows keyboard shortcut to close the currently active application or window. Alt + Esc cycles between open windows rather than closing them, and the other combinations aren't standard system shortcuts for closing applications.