A Argumentative, because it presents a thesis on the impacts of urbanization and advocates specific solutions to the challenges discussed.
B Narrative, because it describes events related to urbanization in chronological order and includes central characters.
C Descriptive, because the text merely describes urbanization and its characteristics without presenting critical analysis.
D Academic, because it uses formal language and provides numerical data about 21st-century urbanization.
E Descriptive-narrative, because it combines the presentation of facts with the structuring of events in a temporal sequence.