The term slum means a noisy, busy city filled with many residents. a busy neighborhood with apartment buildings. an industrial neighborhood containing many factories. a crowded area with run-down housing and high poverty.

a crowded area with run-down housing and high poverty.

Explanation:

A slum is an area or a place that is characterized by overcrowding, inadequate and insufficient of housing facilities for peoole

A slum can also be defined as a city or urban area that is mostly over populated with people, lacks and adequate access to clean water. A slum is also always dirty to a lack of proper sanitation , bad drainage system and garbage disposal.

d is the right answer