In the quantity discount model, with carrying cost stated as a percentage of unit purchase price, in order for the EOQ of the lowest curve to be optimum, it must: A) Have the lowest total cost B) Have the largest quantity compared to other EOQ's C) Be to the left of the price break quantity for that price, (For example, suppose that when the range of order quantity is from 10 to 20, the unit price is $1. Then, the left of the price break quantity is 10 units for the price. ) D) Be in a feasible range