Concept:An advice note is a document sent by the seller to notify the buyer that the goods have been dispatched.Explanation:When the seller sends the goods, he or she issues an advice note to the buyer.This note informs the buyer that the goods are now in transit.It gives details about the consignment so the buyer can expect delivery.A quotation is a price offer, an invoice demands payment, and a debit note increases the amount owed.Therefore, the correct document for notifying transit is the advice note.Answer:D. an advice note