The correct answer is - B. Roman Catholicism.
The Spanish people, with their arrival and settling in Latin America, brought with them their culture as well, and one big part of their culture was their religion. They were practicing the Roman Catholicism, and still are, being one of the ''biggest believers'' in the Christian faith nowadays.
The Spanish encountered multiple civilizations in this region, and after they conquered them, they started to assimilate them, some of which forcefully. Over time, their assimilation turned out to be a success, so the most dominant religion, by far, in Latin America is the Roman Catholicism.
