Answer:
d. ROP
Step-by-step explanation
The economic order quantity is the minimum amount of inventory that a seller must keep to demand and lower the holding cost. The reorder point is the inventory management system in which a certain level of inventory is set as a trigger for reordering the stock. The cost of excess stock for the grocery store is $1 ($1.50 - $0.50). The cost of under cutting the inventory is $1.70 ($3.20 - $1.50). The cost of under stocking is more than cost of excess inventory. The best model which will suit the grocery store is ROP.