Which Statement Regarding Supply Chains Is Most Accurate

Which statement regarding supply chains is most accurate?

A) The most common form of supply chain is the collaborative-response efficiency strategy.
B) In order for a supply chain to work effectively, key decisions should be made by a third-party logistics provider.
C) The longer the supply chain, the greater the economies of scale and the better the profit margin.
D) Supply chains should consider the needs of suppliers, provided those needs are consistent with marketing strategies.
E) Supply chain managers often need to make trade-offs between efficiency and responsiveness.