Under International Financial Reporting Standards $($IFRS$),$ certain financial instruments that are recognized at amortized cost are subject to impairment tests. Which of the following statements regarding accounting for financial instruments under IFRS is correct?

Group of answer choices

Available$-$for$-$sale financial assets are recognized at amortized cost.

Written$-$down financial instruments can be written up under IFRS if their fair market value subsequently improves.

Held$-$for$-$trading financial assets are recognized at amortized cost.

Accounting numbers based on amortized cost accounting are relevant and reliable.