Universal Containers created a custom object called Component to capture details about products sold.

Create a master-detail relationship on Product to Component. Add the Component related list to the Product page layout.

Create a junction object to relate Component and Product. Add the Component related list to the Product page layout.

Create a roll-up on Product. Add the Component related list to the Product page layout.

Create a lookup relationship on Component to Product. Add the Component related list to the Product page layout.