Final answer:
Option (3), John of Leyden led a radical Protestant movement in the city of Münster, where he advocated for the abolition of private property and polygamous marriages.
Step-by-step explanation:
One of the most radical Protestant movements was led by John of Leyden in the city of Münster. Known for his extreme views, John of Leyden called for the end of private property and the return to polygamous marriages. This movement was part of the larger Protestant Reformation, which was a period of religious upheaval and change across Europe.
The movement in Münster was a manifestation of the Anabaptist sect and represented a significant departure from both Catholic and emerging mainstream Protestant doctrines.