At the council of trent, the catholic church:
a. declared the supremacy of a general council over even the pope.
b. reaffirmed the doctrines of indulgences and papal supremacy, but rejected most of the doctrines to which protestants had objected.
c. condemned the doctrine of indulgences.
d. modified many of its doctrines to make them more difficult for protestants to attack.
e. reaffirmed almost all of the doctrinal claims that protestants criticized.

The correct answer is letter d. At the Council of Trent, the Catholic Church reaffirmed almost all of the doctrinal claims that Protestants criticized; this was a Catholic council that met in intervals from 1543 until 1563 it was gathered by Paul III; the settlement taken at Trent (a provincial capital of the Holy Roman Empire, located in Italy) provided the foundation on which a new Catholic Church would be constructed; debated some form of compromise with Protestantism, it ended by reaffirming all of the Catholic tenets challenged by Protestant critics

Your answer would be a in this question good luck