Select the correct passive form of the given sentence.
The PM has announced a very large economic relief package for the country.
1
A very large economic relief package for the country has been announced by the PM.
2
A very large economic relief package for the country was announced by the PM.
3
A very large economic relief package for the PM has been announced by the country.
4
A very large economic relief package for the country is going to be announced by the PM.