Which of the Following Leads to Sustainable Competitive Advantage

Multiple Choice

Which of the following leads to sustainable competitive advantage? 

A)  ​A similarity in information technology used across competing firms 
B)  ​A high potential for competing firms to create or buy a company's information technology 
C)  ​Continuous improvement of the hardware and software used by a company 
D)  ​Using information technology to continuously improve the core functions of a company