Settlements that have populations in excess of 10 million people and that connect their countries and regions to the world economy are called .A. small citiesB. megacitiesC. megalopolisesD. suburbs

B

Explanation:

Megacities are urban settlements that has a population of at least ten million people. Megacities serves as gateway between its country and world economy through series of industrialization, urbanisation and infrastructural developments.

However despite large urbanisation, megacities are laden with some challenges of crime, homelessness, traffic congestion e.t.c