Answer:
b. expansion often occurred in an orderly and organized manner
Step-by-step explanation:
The expansion of cities did not always occur in an orderly and organized manner, most of the time this process occurred with the growth of marginalized areas where people were huddled without any type of infrastructure and basic living conditions, sanitation, housing and even essential things like water and proper food.
It took years for cities to expand in an organized manner and often this organization is still flawed, even today.