Answer:
Insertion Order
Step-by-step explanation:
An insertion order is the last step in advertisement proposal process. It is an agreement detailing the inventory in order to ensure that the advertisement or ad proposal is processed. It is issued between a seller of an advertisement and a buyer, in this case, the newspaper. It shows the agreement between the seller of an ad and the advertiser to run a campaign indicating information like ad size, rate, date and so on.