Question: In what part of the country can most of the Congo's citizens be found?

Is "Thus, Congo is one of the most urbanized countries in Africa, with 70% of its total population living in a few urban areas, namely in Brazzaville, Pointe-Noire or one of the small cities or villages lining the 534-kilometre (332 mi) railway which connects the two cities." the correct answer?
Options are:
(A). yes;
(B). no;
(B).