Which of the Following Is the Best Example of a Topic

Multiple Choice

Which of the following is the best example of a topic sentence for a paragraph on the disadvantages of urban living?

A) Though urbanization offers us several benefits, it comes with its own costs.
B) The number of cities in the developing world is increasing by the day.
C) A city is generally an urban settlement with a large population.
D) Increasing urbanization is a feature of our times.
E) Urbanization is the physical growth of urban areas as a result of global change.