单项选择题
Which of the following does Article 2A of the Uniform.Commercial Code govern?()
A.mixed salesB.sale of goodsC.leasesD.letters of credit
A.an acknowledgement of debtB.an implied promise to payC.an unconditional promise to payD.a promise to negotiate
A.It is not a separate legal entity from the ownerB.It is a small business that is exempted from taxationC.It is a not-for-profit organizationD.It is generally an institution with no business dealings