Which situation is considered a cause of the other three?

1.Religious unity declines throughout Europe.

2.The catholic counter-reformation begins.

3.The power of the Roman Catholic Church decreases.

4.Martin Luther posts the Ninety-five Theses.

4.Martin Luther posts the Ninety-five Theses.

Explanation:

In 1517, Martin Luther posted the Ninety-Five Thesis which denounced several corruption scandals within Catholic Church and set the beginning of the decline of religious unity throughout Europe with the establishment of the Protestant Reformation and its reaction by the appearance of the Counter-Reformation.

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explanation: