AP Euro History Medival Ages Question about the a papal doctrine?

Question: AP Euro History Medival Ages Question about the a papal doctrine!?

what papal doctine contributed to te transformation of the papacy into a great secular power!?

a!. papal primacy
b!. plentitude of power
c!. Petrine doctrine
d!. papal infallbility
d!. Donation of Constantine

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Best Answer - Chosen by Asker:

Papal infallibility!. Because anything the Pope said was right, even matters regarding politics!.Www@QuestionHome@Com