A primate city such as Mexico City is

a. Always located in the center of its country for maximum accessibility
b. More than twice the size of any other city in its country and dominant economically and culturally
c. Most likely to share its rank size with at least on other city in the country
d. Always a national capital serving as the seat of government and industrial center of the country
e. Much larger than the cities in any neighboring country and serves as the region’s financial capital