Select the assumption, principle, or constraint that most appropriately justifies these procedures and practices.
[tex]\begin{tabular}{|l|l|l|l}
\hline & Fair value changes & Exercise 2-7 Presented below are a number of opera Economic Entity \\
(a) & are not recognized in the accounting & AssumptionMaterialityFull Disclosure PrincipleMeasurement Principle (historical cost)Expense Recognition PrincipleMeasurement Principle (fair value)Revenue Recognition PrincipleExpense Recognition and \\
& records. & Revenue Recognition PrinciplesPeriodicity Assumption
\end{tabular}[/tex]