Option (1) is incorrect: It can be either preliminary or final.
Option (2) is incorrect: It can be either preliminary or final.
Option (3) is incorrect: It can be either preliminary or final.
Option (4) is correct: A decree is preliminary when further proceedings have to be taken before the suit can be completely disposed of. It is final when such adjudication completely disposes of the suit. It may be partly preliminary and partly final.