What is the author's main argument in this text? a) The author argues that the universe had a definite beginning and that science cannot explain ...

The main argument of the author in this text is:

b) The author argues that the universe had a definite beginning, but science can explain how it started without invoking God.

Throughout the text, the author discusses the historical debate about the origin of the universe, mentioning how some ancient beliefs and religious perspectives suggested a recent creation, while others, like Aristotle, preferred the idea of an eternal universe. However, the author concludes by suggesting that a complete and unified theory of physical interactions might be attainable in the future through scientific advancements, without necessarily needing to invoke divine intervention.