Which of These Statements Best Describes How a Supply Chain

Which of these statements best describes how a supply chain differs from a marketing channel?

A) Communication is more important in the marketing channel than in the supply chain.
B) The marketing channel places more emphasis on cost-effectiveness than the supply chain.
C) A marketing channel includes suppliers that provide raw material inputs to a manufacturer.
D) A supply network moves materials from producer to consumer while a marketing channel moves materials from the supplier to the producer.
E) A supply chain includes suppliers; marketing channels do not.