Answer:
Correct answer is A. by creating religious orders.
Explanation:
A is the correct answer as many religious orders, including Jesuits were created in this period, whose role was spreading the Catholicism across the world.
B is not correct answer as existing priests were not replaced by some new ones, but continued to do their role.
C is not correct as the sacraments were not to be changed, as this are religious laws that are established together with the Church.
D is not correct as church hierarchy existed a long time before Reformation and Counter Reformation.
