A owes B ` 50,000. Due date for the payment is 25th March. A pays to B ` 30,000 on 25th March, who accepts it in full satisfaction of the debt. The debt is discharged on account of (i) remission....

A owes B ` 50,000. Due date for the payment is 25th March. A pays to B ` 30,000 on 25th March, who accepts it in full satisfaction of the debt. The debt is discharged on account of

(i) remission. (iii) novation.

(ii) extension time of performance. (iv) all of the above.