Yes. They did not welcome them.
The correct option is:
They primarily painted their works using oil paint.
During the Italian Renaissance, some remarkable egg tempera paintings and frescoes were produced. The northern renaissance didn't present that kind of frescoes because the climate wasn't appropriate to cure them. That´s why the north developed the chemistry of oil paints, so artists could have a medium that would dry and last.
Answer: A is correct.
Explanation: all the power belongs to God (God has the absolute power over the world, Christianity, history). Popes are ministers of God, they are shepherds of all Christianity inclunding temporal power before Christ´s Second coming.