How did Senator McCarthy use people's fears to attack constitutional rights of American citizens?

(this is just for fun) "alexander hamilton had a torrid affair and "(hamilton reference) : )

Following archduke franz ferdinand's assassination, austro-hungarian leaders: a. aided the ottoman empire in its campaign to keep serbia under its control. b. executed nearly all prominent serbs living in austria-hungary c. threatened to invade serbia if serb leaders did not agree to a set of strict demands. d.. formed an alliance with great britain to protect austria-hungary from future attacks.

How has the caste system canged in indea and pacistane