Which of the following themes is prominent in Dick's work?

The theme of Artificial Intelligence is indeed prominent in Philip K. Dick's work. His stories often explore the nature of consciousness and the implications of creating entities that possess human-like qualities, leading to profound questions about identity, morality, and what it means to be truly human. Dick delves into the relationships between humans and machines, particularly how these relationships challenge our understanding of reality and self.

While other themes like the conflict of good versus evil, time travel, and space exploration may appear in some of his works, they do not encapsulate his primary focus as compellingly as the exploration of Artificial Intelligence. This thematic emphasis resonates throughout many of his stories, highlighting the complexities and ethical dilemmas that arise from advanced technology and its impact on society and individuals.