Direction: Select the correct passive form of the given sentence.
DLF has built India's tallest building in Gurgaon.
1
India's tallest building is been build by DLF in Gurgaon.
2
India's tallest building has been built by DLF in Gurgaon.
3
India's tallest building have been built by DLF in Gurgaon.
4
India's tallest building is being built by DLF in Gurgaon.