Which of the following factors mostly accounts for high population density in West Africa cities?

The concentration of industries mostly accounts for high population density in West African cities. Industries provide employment opportunities and attract people from surrounding rural areas seeking work. As the population grows, the demand for housing, social amenities, and services also increases, leading to the growth of urban centers. Consequently, more people move to the cities in search of better living standards and more opportunities. This results in high population density in these areas. Therefore, the concentration of industries is a significant factor that contributes to the high population density in West African cities.