Given this scenario: A customer can make many purchases, and each purchase is for one or more items. Each purchased item is sold at the current price of the corresponding item sold by a company. The current price of an item changes over time, and each item is supplied by several suppliers.

Which aspect of this scenario shows the N:M strong pattern?

Group of answer choices

The relationship between customer and purchase

The relationship between purchase and purchased item

The relationship between purchased item and item

The relationship between supplier and item