The greatest concentrations of roman catholics today are found in europe and a) asia. b) africa. c) europe. d) latin america. e) north america.

The correct answer is - D. Latin America.

The biggest concentrations of the Roman Catholics nowadays are in the Europe, the western part in general, and Latin America. While Europe has become more religiously divided, and the Christianity split into multiple branches like the Protestantism, Lutheranism, Anglican Church, Methodist Church, and the Roman Catholicism has lost lot of its original followers, that is not the case in Latin America.

Latin America's population is almost exclusively Roman Catholic, and they are known as hard core believers. Because of the Latin American population's religious preferences, North America, namely the United States is seeing an increase in Roman Catholics, as the people from Latin America are the ones that migrate the most towards the USA.  

The correct answer is D. The greatest concentrations of Roman Catholics today are found in Europe and Latin America.

Explanation:

Catholicism is the main branch of Christianity. Therefore, it could be said that it is the religion with the highest number of adherents in the world.

Most of the populations of countries in central and southern Europe are Catholic, in countries such as Italy, France, Spain, Portugal, Ireland and others. As a consequence, Europe is one of the territories with the greatest Catholic presence in the world.

But in addition to Europe, Latin America is the other major focus of world's Catholicism. This is explained as the territories of Latin America were colonized by countries with a Catholic majority (Spain, Portugal and France), who established their customs and culture, including their religion.