The correct answer is C) revived Catholicism in a strongly protestant area.
The major achievement of Frances de Sales was that he revived Catholicism in a strongly protestant area.
Frances de Sales (1567-1622), was a Catholic Roman Bishop in Geneva that supported the presence of Catholicismin a Protestant area influenced by Calvinists. For his efforts in supporting and maintaining the Catholic faith in those difficult situations, the Vatican decided that he would receive beatification in 1661.
