Question: For a grocery chain dimensional schema whose grain size is a transaction line item, if you want to create an aggregate whose sales amount fact

For a grocery chain dimensional schema whose grain size is a transaction line item, if you want to create an aggregate whose sales amount fact refers to the total sales for all products in a particular product category in a specific month at a specific store, the following dimension(s) need(s) to be rolled up:

Product only

Time and Product

Store only

Time, Product, and Store

Time only

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