Answer:
The correct option is statement number 3. Suburban sprawl occurs when people move to areas on the outside of cities, and more space is needed for housing, infrastructure, and businesses.
Step-by-step explanation:
When the living conditions in a city become crowded, the people of the city tend to migrate to places near to the city. A s a result, these areas start to come under the city and the city expands. Such type of commercial development is termed as suburban sprawl.
However, suburban sprawl might have certain disadvantages as it might have arisen due to deforestation. Suburban sprawl can often lead to increase in pollution such as water pollution.