When considering depreciation, the concept of
whether an item of physical deterioration is
curable or incurable is a function

D.
Curable and incurable with respect to an item of depreciation has nothing to do with whether the item can
actually be repaired. The idea is based on whether the expenditure to repair something would add an equivalent
value to the property (curable) or not (incurable). Therefore, cost and value in isolation from each other are
incorrect answers.