Under IFRS, which of the following is most accurate if the outcome of a longterm contract cannot be measured reliably and it is probable that the costs will be recovered（）
A. The company reports revenue to the extent of contract costs incurred.
B. The company does not report any income until the contract is substantially finished.
C. The company estimates what percentage of the contract is complete and then reports that percentage of the total contract revenue in its income statement.
