Final answer:
The concept of 'using less parcel shipping' is not part of logistical integration objectives, which focus on variance reduction, inventory reduction, and responsiveness in the supply chain.
Step-by-step explanation:
The concept that is not part of logistical integration objectives is c) Using less parcel shipping. Logistical integration aims to streamline and optimize the supply chain. Major objectives include variance reduction, which deals with minimizing inconsistencies in the supply chain; inventory reduction, which focuses on lowering the amount of stock on hand to reduce costs and increase efficiency; and responsiveness, which is the ability of the supply chain to react quickly to changes in demand or the market. Using less parcel shipping does not align directly with these goals as it is more related to a tactical decision than a strategic integration objective.