Final answer:
A purchase order is a document used to describe and quantify goods ordered by a customer, making 'Customer order' the correct answer.
Step-by-step explanation:
A purchase order is a document for communicating the description, quantity, and related information for goods ordered by a customer. A sales order is a document for communicating the description, quantity, and related information for goods ordered by a customer.
Therefore, the correct answer to the student's question is B) customer order. A purchase order helps both the buyer and seller keep track of orders and deliveries, ensuring that both parties agree on what is being supplied.
A purchase order, often abbreviated to PO, is a commercial document issued by a buyer to a seller, indicating types, quantities, and agreed prices for products or services required.[1] It is used to control the purchasing of products and services from external suppliers.[2] Purchase orders can be an essential part of enterprise resource planning system orders.
B) customer order is the correct answer.