A tourism agency wants to redesign its business model using modern web technologies. We need to identify the actions that best highlight the transformative role of these technologies. A transformative role implies significant changes to how the business operates, interacts with customers, or delivers value. Let's evaluate each action: a. Implementing responsive web design to enhance user experience. Responsive web design ensures that the agency's website functions well and looks good on any device (desktop, tablet, mobile). This is crucial for reaching a wider audience and providing a seamless user experience, which is fundamental to modern online business and customer engagement. This is a transformative* action as it changes how customers interact with the brand digitally. b. Using web-based CRM systems to analyse customer touchpoints. A web-based Customer Relationship Management (CRM) system allows the agency to collect, organize, and analyze customer data across all interaction points. This enables personalized marketing, improved customer service, and better understanding of customer needs, fundamentally transforming how the agency manages its customer relationships. This is a transformative* action. c. Discontinuing online presence to reduce cybersecurity risks. This action is the opposite of leveraging modern web technologies for transformation. It represents a retreat from digital engagement, not an embrace of its transformative potential. This is not a transformative* action in the context of redesigning a business model using web technologies. d. Integrating AI-driven chatbots for real-time customer engagement. AI-driven chatbots provide instant, automated customer support, answer queries, and can even assist with bookings 24/7. This significantly enhances customer service efficiency, reduces response times, and offers a new, scalable way to engage with customers. This is a transformative* action. e. Using web analytics to improve digital marketing campaigns. Web analytics tools provide data on website traffic, user behavior, and campaign performance. Using these insights to optimize digital marketing strategies allows for more targeted, effective, and efficient campaigns, transforming how the agency acquires and retains customers. This is a transformative* action. Based on this analysis, actions a, b, d, and e represent transformative uses of modern web technologies. Action c is counter-transformative. Therefore, the correct option is C, which includes a, b, d, and e. The final answer is $\boxed{\text{C}}$