Which of the following suggested bases of recognizing revenue is not permitted by authoritative literature?
A) During production for long-term construction contracts if reliable estimates of the extent of progress and of the cost to complete can be made and if reasonable assurance of collectibility exists
B) At the completion of production if immediate marketability at a quoted price exists for a product whose units are interchangeable
C) On an accretion basis where product marketability at known prices exists and it is desirable to recognize changes in assets, such as growing timber
D) On a cash basis if no reasonable basis exist for estimating collectability