Final answer:
The straight-line method results in a uniform charge to depreciation expense each year. Option 1.
Step-by-step explanation:
The method that results in a uniform charge to depreciation expense during each year of an asset's service life is the straight-line method(1).
Under the straight-line method, the same amount of depreciation expense is recorded every year, ensuring a uniform charge over the asset's useful life.
For example, if an asset has a useful life of 5 years, and its initial cost is $10,000, the straight-line method would allocate $2,000 of depreciation expense each year.