Because of the great schism, the church in medieval society lost
a) domination of education.
b) support of the emperor.
c) political and cultural influence.
d) income from lay investiture

The answer to this question would be political and cultural influence.

C) political and cultural influence.

Explanation:

Because of the Great Schism, the Church in medieval society lost

C) political and cultural influence.

They great schism occurred because the Roman empire broke out. Largely because the leaders could not manage the expansion of the empire. The church was also very influential as at this time . The Pope had some political and cultural influence

During the Great Schism", there was division of the church into Roman Church and Orthodox Church due to leadership, use of images etc.

your answer is

to dominate europe

and i know for a fact it can't be the others

i know social security wasn't one.

explanation:

hope my answer has you!