Converting companies into successful e-businesses has become an important objective for today’s businesses. In order to achieve this goal, the requirements of global networking, integrated business processes, agility in responding to the market, intelligent decision-making and support of supply-chain management, customer relationship management and e-commerce features must be met and some of the main benefits of e-business: (1) reducing operating costs of business and its processes and avoiding consumption,(2) increasing market opportunity (Faster access to the market and customer trends), (3) fast access to customer: enabling them to access the information about products or services they need at any time (7/24), (4) elimination of processing errors, (5) strengthening internal management, supply chain management: provide uninterrupted (continuous) supply chain, (6) reduction of sales cycle, (7) increasing visibility, (8) communication improvement, and (9) predicting the fall in the probable life curve of product. The difficulty and high cost of transformation 
and change, and especially high expectation of performance lead to certain challenges in e-business. The main challenges in e-business are: (1) determining customer’s changing needs, (2) organizational structure, (3) the high speed of the development of IT, (4) Integration of the front and back-end sytems of the organization, (5) a lack of quality human resources, (6) the complexity of ensuring security, (6) growing competition, (7) effective and efficient customer service (high availability, ease of use, personalized systems), (8) high quality Access, and (9) expensive infrastructure of information system. The correct answer is Choice D.