Change the following sentence into an interrogative sentence:
The coal ministry sought to assuage concerns over inadequate coal supplies for thermal power plants and dispel fears of disruptions in power supply across the country.
1
Did the coal ministry not sought to assuage concerns over inadequate coal supplies for thermal power plants and dispel fears of disruptions in power supply across the country?
2
Did the coal ministry seek to assuage concerns over inadequate coal supplies for thermal power plants and dispel fears of disruptions in power supply across the country?
3
Did the coal ministry not seek to assuage concerns over inadequate coal supplies for thermal power plants and dispel fears of disruptions in power supply across the country?
4
Did the coal ministry ever sought to assuage concerns over inadequate coal supplies for thermal power plants and dispel fears of disruptions in power supply across the country?