cristianity
Catholic. It was settled by Catholic Spain.
I think it might be Catholicism, but not 100% sure.
Both countries are primarily Prespiterian. Spain is about 0 Catholic and Italy is about 0 Catholic.
Given Mexico's historic links to Spain, the dominant religion is Christianity, with most Christians being Roman Catholic.
Yes, it's the christian catholicism.
Christans and Cathoics.
Catholic
The dominant religion of Spain is the Roman Catholic Church.
Roman Catholic
It was the Religion of Spain and became the dominant religion of Puerto Rico after the Spanish explorers came to the Americas.
Christianity is the most dominant religion.