A developer defines the following measure in the order_items view:
The code must validate without errors.
Which action should the developer take?
A. Join order_items and inventory_items in a derived table.
B. Join order_items and inventory_items in the same Explore.
C. Copy the cost definition from inventory_items to the order_items view file.
D. Add the following to the order_items view file: include: “inventory_items,view.lkml”