Which of the following diagrams represents the cardinality pairs in a situation where customer orders are individually filled,but not all the items on a customer order are always available?

Question

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In this situation, one customer can place multiple orders and each order can have multiple items. However, not all the items on an order may be available. This is represented by the fact that there is a one-to-many relationship between the customer and the orders, and a many-to-many relationship between the orders and the items. Choice B correctly represents this situation with a crow's foot notation indicating the many side of the relationships.

Which of the Following Diagrams Represents the Cardinality Pairs in a Situation