From a supply chain view of production and consumption which of the following must be true (in the long run) at every stage in the chain? Group of answer choices The producer must be able to make as many products as the next step in the chain requires The producer must be able to acquire enough iron ore to produce the quantity of chain that customers demand The producer must be able to sell products for more than the cost of production End consumers must value the product more than the price they pay for it