Antonio, a sole propietor, purchased a van for $$40,000$ to use exclusively in his delivery business. Six months later, he sold the van for $$42,000.$ Antonio's $$2,000$ gain from the sale of this property should be reported as:

A$.$ Gross receipts or sales on Schedule C$,$ Part $1$

B$.$ A gain from the sale or exchange of property used in a trade or business on Form $4797,$ Part $1.$

C$.$ An ordinary gain on Form $4797,$ Part II$.$

D$.$ A gain from the disposition of property on Form $4797,$ Part III.