The answer is B) A series of actions by the Catholic Church intended to spread and defend the Catholic faith.
The counter-reformation was in response to the Protestant reformation, so the first answer is out of the question.
Martin Luthers own actions sparked the Protestant reformation, and as mentioned prior - it was a response to the Protestant reformation (however, during this time they did solidify the power of the pope).
A. because that was the main goal, after the first crusade none of the other crusades managed to recapture Jerusalem again,
