The gain or loss on the sale of property held as an investment is recorded on which one of the following forms or schedules? O Form 4797 if the sale was from an asset used for investment purposes by a taxpayer who purchased it with company money as O O O a sole proprieton Schedule D if the sale was an asset used in a trade or business by a sole proprietor. schedule D if the sale was an asset used for investment purposes by a taxpayer. Form 4797 regardless if the asset was purchased for investment if the taxpayer is a sole proprietor