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						 Read the facts and the question and then choose the best answer. 
						A visits B's ranch and is shown a black horse called 'Mayfair'.  He likes the horse and offers to buy it. A then signs a written contract, which appears on its face to be a complete agreement, promising 'to pay $5,000 for the purchase of the horse Mayfair owned by B'. In fact B owns two horses registered under the name Mayfair.  One of these is black, the other brown. 
						If B does not accept that he agreed to sell the black horse to A, will A be entitled to lead evidence of a term, not contained in the written contract, that it was the black horse he agreed to buy? 
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