"He would find their actions appropriate because he believed human sin may have caused the plague" in this way Boccaccio likely feel about the actions of the flagellants, who warned Christians to repent.
Answer: Option C
Step-by-step explanation:
Probably it was in the years 1348–53, that Boccaccio composed the "Decameron". Boccaccio was a man in almost every sense of the Renaissance. He felt that actions of the flagellants were appropriate as he believed human sin must have been reason behind plague.
In Europe, the Flagellants were religious Middle Age zealots who displayed their religious fervor and sought expiation for their sins by actively whipping themselves in public displays of penance.