Which of the Following Factors Is Considered Key to Zara's

Which of the following factors is considered key to Zara's ability to maintain a winning business formula?

A) Keeping the design and conception process in-house against the conventional wisdom of outsourcing
B) The practice of limited production runs that keep customers interested and asking for more
C) Keen understanding of how information systems can enable winning strategies
D) The twice-weekly delivery model which ensures that newer stock is available for customers more often than in rival stores
E) The model of globally dispersed production that leverages low-cost labor and keeps profit margins high