The entity relationship model below shows the relationship between Product and Order. Which of the following business rules is correct and is reflected in the diagram?
I disagree, I think the correct business rule is B) The maximum number of products on one order is unlimited, because there is no limit shown in the diagram.
B seems more logical to me. The maximum number of products on one order should be unlimited, as there's no cap on the number of items a customer can order.
I think the correct answer is D. The minimum number of products on each order is zero, which is reflected in the one-to-many relationship between Order and Product.
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