Multiple choice technology platforms and products Shortcut keys to collapse all the outlines to definition. CTRL + M, CTRL + P CTRL + O, CTRL + M CTRL + M, CTRL + O CTRL + M, CTRL + K Reveal answer Fill a bubble to check yourself C Correct answer Explanation In Microsoft Visual Studio, the standard keyboard shortcut chord to collapse all outlining regions to their definitions is CTRL + M, CTRL + O. CTRL + M, CTRL + P is used to expand them.