How did the Council of Trent address the number of Catholic sacraments?

The Council of Trent, inaugurated under Pope Paul III, formally reaffirmed the Roman Catholic Church's teaching that there are exactly seven sacraments.12

This decision served as a direct response to Protestant reformers, who generally maintained that there were only two sacraments: baptism and the Eucharist. By establishing the sevenfold enumeration—comprising baptism, confirmation, the Eucharist, reconciliation, anointing of the sick, marriage, and holy orders—the council clarified doctrine that had faced ambiguity during the Middle Ages. Furthermore, the council affirmed that these rites were instituted by Christ and operate ex opere operato, meaning their effectiveness is based on the saving act of God rather than the personal virtue of the minister.1234