Which of the following is declared as world heritage site by UNESCO in 2018?

The Victorian Gothic and Art Deco Ensembles of Mumbai

The correct answer is Option (2) - The Victorian Gothic and Art Deco Ensembles of Mumbai

The Victorian Gothic and Art Deco Ensembles of Mumbai were designated as a UNESCO World Heritage Site in 2018. This recognition acknowledges the architectural significance of these ensembles, which represent the fusion of Victorian Gothic revival and Art Deco styles in the cityscape of Mumbai, India's commercial capital.