Which of the following statements about the asset retirement obligation and asset retirement costs is true?

The asset retirement cost and the asset retirement obligation are measured at the estimated present value of the obligation

at the end of the asset's useful life.

The balances in the Asset Retirement Cost and Asset Retirement Obligation both increase over the life of the asset.

Asset retirement costs are charged to depreciation expense while the asset retirement obligation is increased by accretion

expense each period in the asset's life.

Asset retirement costs are charged to accretion expense while the asset retirement obligation is increased by interest

expense each period in the asset's life.