When SB Corporation purchased Banner Corporation in the current year, SB recorded $1,500,000 of goodwill. How should SB account for the goodwill after the acquisition?

The goodwill should be amortized straight-line over its estimated useful life.

The goodwill should remain on SB's books as a long-term asset, and should not be amortized because it has an indefinite life.

The value of the goodwill should be increased each year by the amount of net income earned by Banner.

The goodwill should be written down each year by the amount of net income earned by Banner.