Concept:A quotation states the current price and terms of trade for goods or services requested by a buyer.Explanation:Oladosu Bookshop is writing to ask the supplier for “quotes” for specific items.They also request a statement of the supplier’s terms of trade.Such a message is an inquiry, and the document sent in response is called a quotation.A quotation helps the buyer know the price and conditions before placing an order.Answer:D. Quotations