A foreign buyer requests a 'pro forma invoice' before placing an order. What is the primary purpose of this document in the context of product presentation?
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A
To serve as the final customs entry document
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B
To provide a preliminary quotation detailing product specs, price, and terms so the buyer can arrange financing or import licenses
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C
To certify the product meets international safety standards
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D
To replace the bill of lading in air freight shipments