Statement (i): Slums are typically characterized by dilapidated houses, often overcrowded, with poor ventilation, insufficient space, and substandard construction. This statement is correct.
Statement (ii): Essential services such as electricity, water, and adequate sanitation are frequently limited in slums, posing significant challenges for residents. The scarcity of toilets and safe drinking water is a critical problem in these regions. This statement is correct.
Statement (iii): The general hygiene in slums is poor due to overcrowding, the absence of sanitation facilities, and inadequate waste management. Drinking water sources are often contaminated. This statement is correct.
Statement (iv): Slums commonly experience deficient drainage systems, leading to increased flooding and health hazards. Therefore, this statement is incorrect.
Consequently, the accurate statements are (i), (ii), and (iii), designating option (A) as the correct selection.