Why was martin luther (who wrote the 95 theses) excommunicated from the catholic church in the 1500's?

 Prince Frederick III the Wise had banned the sale of indulgences in Wittenberg, many church members traveled to purchase them. When they returned, they showed the pardons they had bought to Luther, claiming they no longer had to repent for their sins. Luther’s frustration with this practice led him to write the 95 Theses, which were quickly snapped up, translated from Latin into German and distributed widely. A copy made its way to Rome, and efforts began to convince Luther to change his tune. He refused to keep silent, however, and in 1521 Pope Leo X formally excommunicated Luther from the Catholic Church.

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a they donate money to humanitarian causes

c   they volunteer to alleviate suffering

d   they blame all muslims for not being able to keep their fellow muslims in line.