Which of the Following Is Not a Condition That Needs

Which of the following is not a condition that needs to be satisfied prior to recognising revenue from the rendering of services using the 'percentage of completion' method?

A) The contract is non-cancellable.
B) The amount of revenue can be measured reliably.
C) The stage of completion of the transaction can be measured reliably.
D) The costs of the transaction (including future costs) can be measured reliably.