Germanic rulers used Salic Law and Christian conversion to?

create absolute monarchs
cultural unity across central Europe
ensure that their sons would become warlords after them
suppress the power of the Roman Catholic Church

The correct answer is: suppress the power of the Roman Catholic Church.

Salic Law was a legal code followed by Germanic rulers that excluded women from inheritance and succession. By utilizing this law, rulers aimed to prevent the Roman Catholic Church, which had considerable influence in matters of inheritance and succession, from gaining power within their territories.

Additionally, the conversion of Germanic rulers to Christianity played a crucial role in their efforts to assert their independence from the authority of the Roman Catholic Church. By embracing Christianity, rulers were able to establish their own relationship with the Church and diminish the power and influence of the Church over their territories.