Which statement best represents the current situation with urban growth in developing countries? 

A)  It is helping to eliminate urban poverty. 
B)  It is generally offset by migration to rural areas. 
C)  It is caused by both migration and natural increase. 
D)  It is generally declining over the few decades.

Urban growth in developing countries is primarily caused by both migration and natural increase, as urban areas attract people from rural areas seeking better economic opportunities and living conditions. However, this rapid urbanization often leads to issues such as overcrowding, inadequate infrastructure, and a strain on resources, which can negatively impact urban poverty levels. Urban growth has also resulted in some migration to rural areas, as people seek to escape the challenges of urban living. Overall, urban growth in developing countries is a complex and ongoing phenomenon with significant economic, social, and environmental effects.