Final answer:
Option (B), The Waldensians were known for advocating modest and simple lives, making option B the correct answer. They were not related to the military and crusading orders involved in the Crusades, such as the Knights Templar.
Step-by-step explanation:
The Waldensians were not associated with the military or crusading orders of the medieval period, like the Knights Templar who were involved in the various crusades to the Holy Land. Instead, the Waldensians advocated modest and simple lives, which makes option B the correct choice. Their movement began in the 12th century and was characterized by a desire for religious purity and adherence to the Gospels, living in poverty, and preaching without official sanction from the Catholic Church.
They were critical of the wealth and power of the church and were later deemed heretical, leading to persecution. Their beliefs and practices contrasted with the objectives and actions of the crusading orders, which included the protection of pilgrims and the establishment of Christian control over the Holy Land.