A. The Page item has a position map that links each component to the component in the page that the item should be displayed in.

B. The component's CurrentPosition attribute is used to determine which component within the page the item should be displayed in.

C. The ContentSlot item's code property is used to determine which slot in the page that the item should be displayed in.

D. The position attribute in the ContentSlotForTemplate item is used to identify the slot in the page that the item should be displayed in.