This Article is primarily about __________.
A.the Reformation period, which elevated rational thought over mysticism, the belief in supernatural forces
B.a strange and deadly "dancing plague" that spread across Europe between the 14th and 16th centuries
C.a woman named Frau Troffea, who danced outside her home in Strasbourg, Germany, until she dropped from exhaustion
D.the bubonic plague, which famously spread across Europe in the mid-14th century and caused stress and famine