How could a deferred tax liability arise?

Group of answer choices

The company decreased the allowance for doubtful accounts on the GAAP books so taxable income is greater than GAAP $($book$)$ income.

The company purchased an asset that depreciates faster on the tax return so taxable income is less than GAAP $($book$)$ income.

The company increased the allowance for doubtful accounts on the GAAP books so taxable income is greater than GAAP $($book$)$ income.

The company impaired goodwill on the GAAP books so taxable income is greater than GAAP $($book$)$ income.