Rectang Corp., an e-commerce firm, recently adopted a new supply chain management system. By virtue of the new system, the company is able to deliver products to customers in a shorter period of time than other e-commerce companies. The supply chain management system may become outdated in the near future; however, it has presently led Rectang Corp. to becoming the industry leader. In the given scenario, Rectang Corp. has achieved _____.
A) First-mover advantage
B) Competitive inertia
C) Quality assurance
D) Vertical integration