Correct Option: B

Smart City Mission of Governemnt of India has three options for area-based proposal. The strategic components of Area-based development in the Smart Cities Mission are city improvement (retrofitting), city renewal (redevelopment) and city extension (Greenfield development) plus a Pan-city initiative in which Smart Solutions are applied covering larger parts of the city. The appropriate site for either of three types of development: retrofitting means addition of smart features in the existing core city (approx. 500 acres), redevelopment means proposal with entire demolition of existing built mass in core city (approx. 50 acres) or Greenfield development means entire fresh development at the fringe part of the city (approx. 250 acres).