what permitted the French Canadians to retain their language, law, and customs and to freely practice their Roman Catholic religion?

The Quebec Act of 1774 permitted the French Canadians to retain their language, law, and customs, and to freely practice their Roman Catholic religion. This act was passed by the British government to ensure the loyalty of the French-speaking population in the Province of Quebec, which was under British rule after the Treaty of Paris ended the French and Indian War in 1763. The Quebec Act recognized French civil law alongside British common law and allowed for the continued practice of the Catholic faith, while maintaining British sovereignty and governance in the region.