There is a many: many Order Line relationship between the entity types Item and Order. Identifiers are item No, order No; other attributes are item Name, item Price, order Date. Show how the model can...

There is a many: many Order Line relationship between the entity types Item and Order. Identifiers are item No, order No; other attributes are item Name, item Price, order Date. Show how the model can be flexed by (a) posting all the Order attributes into Item, (b) posting all the Item attributes into Order, (c) posting all the Order attributes into Order Line, and (d) posting all the Item attributes into Order Line. Which attributes may contain redundant data in each case?