Traffic congestion is a major challenge faced in major cities of Tamil Nadu due to:

Poor road infrastructure
Increasing number of vehicles
Lack of public transport options
All of the above

The correct answer is: d) All of the above.

Traffic congestion is a major challenge faced in major cities of Tamil Nadu due to a number of factors, including poor road infrastructure, increasing number of vehicles, and lack of public transport options.

Poor road infrastructure is a major cause of traffic congestion. The roads in many cities of Tamil Nadu are narrow and congested, which makes it difficult for vehicles to move around. In addition, the roads are often in poor condition, which can lead to accidents and further congestion.

The increasing number of vehicles is another major cause of traffic congestion. The number of vehicles on the roads in Tamil Nadu has been increasing rapidly in recent years. This is due to a number of factors, including the growth of the population, the increasing affluence of the people, and the availability of cheap and easy credit for purchasing vehicles. The increasing number of vehicles has led to a sharp increase in traffic congestion.

The lack of public transport options is another major cause of traffic congestion. Public transport in Tamil Nadu is not well-developed. There are few buses and trains, and they are often overcrowded and unreliable. This makes it difficult for people to use public transport, and they are forced to use private vehicles, which further contributes to traffic congestion.

In conclusion, traffic congestion is a major challenge faced in major cities of Tamil Nadu due to a number of factors, including poor road infrastructure, increasing number of vehicles, and lack of public transport options. These factors need to be addressed in order to reduce traffic congestion and improve the quality of life in these cities.