Modernization of public transport infrastructure is crucial for:

The correct answer is d) All of the above.

Modernization of public transport infrastructure is crucial for economic growth, social development, and environmental sustainability.

• Economic growth: Modernized public transport infrastructure can help to reduce traffic congestion, which can save businesses time and money. It can also improve access to jobs and markets, which can boost economic activity.
• Social development: Modernized public transport infrastructure can help to reduce poverty and inequality by making it easier for people to access jobs, education, and healthcare. It can also improve quality of life by reducing air pollution and noise.
• Environmental sustainability: Modernized public transport infrastructure can help to reduce greenhouse gas emissions and improve air quality. It can also reduce traffic congestion, which can save energy and resources.

In conclusion, modernization of public transport infrastructure is a win-win for everyone. It can help to boost economic growth, improve social development, and protect the environment.