Based on chapter 11 (SCM) which of the following statement is wrong: a) A chocolate making company in Alabama purchased the distributors that sell to supermarkets. This is an example of forward vertical integration b) developing long-term relationships with a few suppliers create value through learning curve improvements and economies of scale. c) If the we consider the end-item manufacturer as the focal company then the raw material is the second tier supplier and the components supplier is the first tier supplier d)The supply chain is made of 2 components e) None of the above , all the statement are correct