Final answer:
Urbanization and the growth of cities increased the need for organized property management as a profession during the early 20th century.
Step-by-step explanation:
The correct answer is C) Urbanization and the growth of cities, increasing the need for organized property management.
During the early 20th century, urbanization and the growth of cities led to a significant increase in the demand for organized property management. As more people moved to cities, there was a greater need for professionals to manage and maintain residential and commercial properties. This growth in urban areas also brought about the need for regulations and frameworks to ensure proper management and maintenance of properties. Therefore, urbanization and the growth of cities were key contributors to the escalation of property management as a profession during the early 20th century.