Final answer:
The expansion of global markets and advancements in communication technologies have increased the need for information systems that cater to 'customers' demands' on a global scale. This impacts both consumer markets and business-to-business networks, with ongoing interest in how technology will shape the size and dynamics of future businesses.
Step-by-step explanation:
The expansion of global markets is a major factor in developing global information systems to handle the demands of integrated worldwide services. The correct answer to the student's question is 'c. customers' demands.' With the improvement in communications technologies, such as the internet, consumers now have the ability to order products from all over the world, thus increasing the competition local businesses face. This global reach also affects business-to-business markets, where buyers and suppliers can connect globally, indicating that the global information systems must be tailored to handle the needs and expectations of worldwide customers.
Moreover, the advent of improved information and communication technologies poses a question about the future structure of businesses, balancing the forces between small and large firms. This question is significant to various stakeholders including economists, businesspeople, and policymakers as they observe the impact of technology on market dynamics and firm size.