Final answer:
The statement is true. The reform of the clergy and establishment of the seven sacraments took place during the Council of Trent, an important event in Catholic Church history.
Step-by-step explanation:
The statement is true. The reform of the clergy occurred during the Council of Trent which took place from 1545-1563. This council was convened to address corruption in the Church and to clarify Catholic teachings to counter the Protestant Reformation. One of the accomplishments was the establishment and confirmation of the seven sacraments: Baptism, Confirmation, Eucharist, Penance, Anointing of the Sick, Holy Orders, and Matrimony. This also involved setting rules for discipline among the faithful.
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