The statement that best summarizes the outcome of the Thirty Years’ War is:
Protestants and Catholics continued to control the same areas in Europe that they had at the beginning of this conflict.
The war ended with the Peace of Westphalia in 1648, which reaffirmed the territorial and religious divisions that had been established prior to the war, allowing for a degree of coexistence between Protestant and Catholic states, but did not fundamentally change their control over regions.