Concept:
Economic Order Quantity is an inventory control method used to decide the most economical quantity to order.
Step 1: Ordering cost.
Ordering cost includes expenses related to placing and processing orders.
Step 2: Carrying cost.
Carrying cost includes storage, handling, insurance, and inventory holding cost.
Step 3: Aim of EOQ.
EOQ balances ordering cost and carrying cost so that total inventory cost becomes minimum.
Step 4: Final answer.
Therefore, EOQ aims to minimize total ordering and carrying cost.
\[
\boxed{\text{Total ordering and carrying cost}}
\]