Final answer:
The Golden Bull established a process for selecting a new Holy Roman emperor by designating seven prince-electors responsible for this task, aiming to create political stability within the empire.
Step-by-step explanation:
The Golden Bull clarified the process of selecting a new Holy Roman emperor by outlining an electoral system. Specifically, it declared that seven prince-electors were responsible for choosing the Holy Roman emperor. These electors were the secular rulers of four principalities and the archbishops of three cities within the empire. This system stood in contrast to hereditary monarchies in other parts of Europe and aimed to reduce the political instability within the empire caused by competition among noble families.