What event might have been an example of why the framers of the constitution included the phrase "insure domestic tranquility? " a) shays' rebellion b) intolerable acts c) american revolution d) stamp act

I think the correct answer from the choices listed above is option A. The event that have been an example of why the framers of the Constitution included the phrase "insure domestic tranquility" would be Shay's rebellion.  "Insure domestic tranquility"  refers to the need to keep the peace and the assurance that people can conduct their lives and business without fear of social disorder, rebellions and riots.