Final answer:
Lot-for-lot ordering in MRP does not categorically eliminate holding costs for parts as there still may be inventory held over, contradicting the idea that it completely eliminates holding costs.
Step-by-step explanation:
The statement that lot-for-lot ordering in MRP eliminates the holding costs for parts that are carried over to other periods is false. Lot-for-lot ordering, or the practice of ordering just what is required for production based on demand, often aims to minimize holding costs by reducing inventory levels. However, it does not categorically eliminate holding costs because there still may be times when some inventory is held over to other periods due to changes in demand or production schedules. Moreover, other costs such as setup or ordering costs may increase when using lot-for-lot ordering, which can affect the overall cost efficiency of this strategy.