Answer:Answer:
D. There were repeated power struggles between kings and popes over who made the selection.
Step-by-step explanation:
During the Middle Ages, the appointment of bishops was a source of tension between monarchs and popes. Kings and emperors often wanted to appoint bishops within their realms as a way to exert control over the Church and its wealth, while popes sought to assert their own authority over Church appointments. This led to a number of power struggles between monarchs and popes over the appointment of bishops, with each trying to assert their own authority. This struggle was known as the Investiture Controversy. Eventually, the Concordat of Worms was signed in 1122, which established the principle that the pope would have the right to appoint bishops, but the king or emperor would have the right to invest them with their lands and temporal rights.