The correct answer is - B. to strengthen the role of the Church.
The sole reason of the Church orders was to strengthen the position of the Church as much as possible. The Church had an interest to be heavily involved in every segment of the running of the countries and also in the daily lives of the people, so it was trying in every way to get hold on its position and to strengthened it as much as possible because in that way they would have much less opposition. The influence of the Church was very strong and the sheer amount of power it had through the Middle Ages managed to keep most of the European continent as a hostage to its rule and ways.