One result of the Protestant Reformation was
(1) fewer challenges to Church authority
(2) a decline in religious unity in western Europe
(3) the disbanding of the Jesuit order
(4) a weakening of the Inquisition



Answer :

One result of the Protestant Reformation was "(2) a decline in religious unity in western Europe" although it should be noted there were of course many results. 

Answer

One result of the Protestant Reformation was that Religious differences increased rivalries between nations

Explanation

Protestant reformation was a religious movement that caused split in the church..The main aim of this reformation was to modernize the continent and bring it into the current era and to belief in the modern beliefs.But the argument for a religious and political redistribution of power triggered wars, persecution and the counter-reformation.