I want to know the answer to the following question:
In what country did the Cathars grow to represent a popular movement?
All the background I'm provided with is that "Heresy was a major justification for the Inquisition (Inquisitio Haereticae Pravitatis, Inquiry on Heretical Perversity) and for the European wars of religion associated with the Protestant Reformation.". Is that enough to answer the question?
Answer: no