Step 1 — About the book:
‘The Audacity of Hope: Thoughts on Reclaiming the American Dream’ is a political book published in 2006. It reflects on U.S. politics, values, and the future direction of the country.
Step 2 — Author:
The book was written by Barack Obama, who at the time was a U.S. Senator from Illinois. The title of the book comes from a sermon delivered by Obama’s pastor, Jeremiah Wright.
Step 3 — Significance:
This book played a key role in shaping Obama’s national profile and laid the groundwork for his successful 2008 U.S. presidential campaign by outlining his vision for unity, change, and hope.
Step 4 — Conclusion:
The book ‘The Audacity of Hope’ is authored by Barack Obama.
Answer: The correct option is (D) : Barack Obama.