How does the introduction of volume discounts impact the Economic Order Quantity $($EOQ$)$ calculation?

How does the introduction of volume discounts impact the Economic Order Quantity $($EOQ$)$ calculation?

It decreases the total cost of inventory regardless of order size.

It has no significant impact on the EOQ calculation.

It necessitates recalculating EOQ using different unit cost factors.

It increases the EOQ to accommodate for higher carrying costs.