Explanations:The Delhi Metro is a rapid transit system that has been under development and expansion since its inception in 2002. It is a critical component of the urban transportation infrastructure in Delhi, designed to provide efficient and reliable public transportation to the residents and visitors of the city. The expansion of the Delhi Metro is a significant ongoing project that aims to address the growing transportation needs of the city and reduce traffic congestion.
The Delhi Metro system is known for its modern technology, punctuality, and safety. It has become a preferred mode of transportation for many people in Delhi due to its convenience and efficiency. The ongoing construction and expansion of the Metro system are part of the broader urban development plans for Delhi, which aim to improve the quality of life for its residents by providing better access to various parts of the city.
While other forms of transportation, such as automatic cars and flying cars, are being developed and explored in various parts of the world, they are not currently under construction in Delhi. The focus of the city's transportation infrastructure development is on expanding the existing Metro system to cover more areas and provide better connectivity. This expansion will help to reduce traffic congestion, improve air quality, and provide a more convenient and reliable mode of transportation for the residents of Delhi.
Therefore, the correct answer is that the Metro Rail system is under construction in Delhi, and it will make travel much more convenient for the residents and visitors of the city. This ongoing project is a significant part of the urban development plans for Delhi and is expected to have a positive impact on the city's transportation infrastructure.