Generative AI is the most suitable type of artificial intelligence for generating personalized responses to customer inquiries. This category of AI focuses on creating content, whether it be text, images, or other forms of media, that is similar to data it has been trained on. In the context of customer service, Generative AI can be used to develop chatbots or virtual assistants that provide users with immediate, relevant, and personalized communication.

The Official Dell GenAI Foundations Achievement document likely discusses the capabilities of Generative AI in the context of business applications, including customer service. It would explain how Generative AI can improve customer interactions by providing advanced analytics, hyper-personalized offerings, and support through natural-language interactions1. This aligns with the goal of enhancing customer service through AI-driven personalization.

Analytical AI (Option OB) typically refers to AI that analyzes data and provides insights, which is crucial for decision-making but not directly related to generating responses. Sorting AI (Option OC) and Storage AI (Option OD) are not standard categories within AI and do not specifically pertain to the task of generating personalized content. Therefore, the correct answer is A. Generative AI, as it is designed to generate new content that can mimic human-like interactions, making it ideal for personalized customer service applications.