Select the option that expresses the given sentence in active voice.
The question papers printed for the examinations by the departments were safely locked by the office staff.
1
The question papers printed were safely locked for the examinations by the departments.
2
The departments locked the question papers printed for the examinations by the office staff.
3
The departments printed the question papers to be locked by the office staff.
4
The office staff safely locked the question papers printed by the departments for the examinations.