Adobe Exam AD0-E318 Topic 4 Question 1 Discussion

In the database diagram, a company has tables orders products Recipient items.

* Recipient is linked to Orders as 1-N

* Products to Orders as N-N

Recipient ID, Email Full Name, Customer ID Orders: Orders ID, Recipient ID, Product ID, Date of purchase items: Prodduct ID, order ID, item ID products Product ID, Name, Status, Creation Date.

Which columns act as both primary and forgive keys?