Answer:
13, unless there it more to it :)
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.
This artifact has a big impact in the world especially since everyone has a story. We would know nothing about Greece if it was not for the artifacts we found over the years. We got to know how they lived and how they survived. We also got to know more about their religion and how it was worshipped.
Kingdoms of the Iberian Peninsula
The Great Migration, or the relocation of more than 6 million African Americans from the rural South to the cities of the North, Midwest and West from 1916 to 1970, had a huge impact on urban life in the United States.