Answer:
A refusal to accept the spread of Protestantism.
Step-by-step explanation:
The Council of Trent was the 19th ecumenical council of he Catholic church held at Trent during 1545-63. The council was convened as a result of the rising Protestant Reformation.
The Council determined the path that the Catholic church would take as a recourse to the Reformation. It determined the doctrines that the Catholic church would take regarding the heresies that the Protestants had spread. And in the given quotation from the Council, we can assume that the main purpose was to refuse to accept the spread of the Protestant religion.
Thus, the correct answer is the first option.