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B is corrent because any seller, not only a merchant seller, may create an express warranty by making any affirmation of fact or promise which forms part of the basis of the bargain. Such a warranty may be made either orally or in writing and will exist regardless of the seller’s intent.
A is incorrect because express warranties may be created by nonmerchants as well as merchants. Any affirmation of fact or promise made by the seller (merchant or nonmerchant) to the buyer which relates to the goods and becomes a part of the basis of the bargain creates an express warranty.
C is incorrect because express warranties may be created either orally or in writing.
D is incorrect because an express warranty will exist regardless of the seller’s intent. No intent to create the express warranty is needed on the part of the seller for this warranty to be created. Any affirmation of fact or promise made by the seller (merchant or nonmerchant) to the buyer which relates to the goods and becomes a part of the basis of the bargain creates an express warranty.