I want to know the answer to the following question:
What two religions were most common?
All the background I'm provided with is that "After the Counter-Reformation, when the Roman Catholic Church regained power in Poland, the nobility became almost exclusively Catholic, despite the fact that Roman Catholicism was not the majority religion in Commonwealth (the Catholic and Orthodox churches each accounted for some 40% of all citizens population, with the remaining 20% being Jews or members of Protestant denominations).". Is that enough to answer the question?
Answer: no