delivered to the site by the seller. The purchase price is $4,000 However, nothing related to this transaction has been reduced to writing. Your client wants to know if the mobile office trailer is personal or real property, whether a valid contract for the sale of goods has been formed, and what specific provision of the Uniform Commercial Code would be applicable to the issue of whether or not this agreement must be in writing to be enforceable. What would you tell the client? Please fully explain your answer. A written contract related to the purchase of the office trailer is subsequently signed, and the terms of the contract reflect that the trailer will be equipped with an HVAC system. 5']. The contract also contains language that the terms set forth in the agreement are the complete and exclusive terms of the agreement. A Later, when the trailer is delivered to the construction site, your client discovers that it is lacking an HVAC system. When the client calls the seller to object, the seller advises the client that the client's administrative assistant advised, in an earlier telephone call, that HVAC would not be necessary since the people who will be using the trailer are "hardy\" and \"don't need heat or air conditioning." f1 What provision of the Uniform Commercial Code relates to situations such as this, where a party tries to introduce extrinsic evidence (i.e. evidence that is outside the written contract} in connection with the sale of goods, and