Final answer:
Hannah Arendt's most comprehensive book in practical philosophy is 'The Human Condition', which is foundational for understanding her theoretical background. It provides an in-depth analysis of human activities and serves as a framework for her other works. Arendt's passion is evident in her writing, serving as an asset to her philosophical contributions.
Step-by-step explanation:
The most comprehensive book by Hannah Arendt that addresses her foundational theoretical background in practical philosophy is C) The Human Condition. This book delves into Arendt's philosophical anthropology and is essential for understanding the roots of her other significant works, such as The Origins of Totalitarianism and Eichmann in Jerusalem. Unlike these other works, which are seen as applications of her theories, The Human Condition lays out the groundwork for her thoughts on the vita activa, or the active life, and how action, labor, and work play central roles in human existence.
Within the domain of practical philosophy, Arendt's The Human Condition explores human activities under the conditions of plurality and natality. Arendt's considerations of labor, work, action, and the public and private realms provide a comprehensive philosophical framework, distinguishing it from her more specific historical and political analyses found in her other books. While considering Arendt's passion and her approach toward her work, it can be said that her passion serves as an asset to her philosophy, pushing her to make significant contributions to political philosophy and the understanding of human conditions.
Moreover, considering the third edition of The Origins of Totalitarianism, Arendt's revisions showcase her dedication to clarity and the evolution of her thoughts, offering valuable insights into writing philosophy. This process reflects the dynamic nature of philosophical inquiry and Arendt's engagement with the changing political landscape of her time.