Which best describes the primary cause of the Great Schism?

The Great Schism began in 1378 when French cardinals rejected Pope Urban VI, who had been elected in Rome, and chose a rival pope, Clement VII. The rival claim split the Western Church between supporters of the two popes, so “The French elected their own pope” is the best description. The papacy’s earlier move to Avignon contributed to tensions but was not the immediate cause.

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