In Rajmohan Gandhi`s book `A Tale of Two Revolts` (2009), he focuses on two significant historical revolts. The correct answer is option 2, which states that the book examines the Revolt of 1857 and the American Civil War.

The Revolt of 1857, also known as the Indian Rebellion or Sepoy Mutiny, was a major uprising against British colonial rule in India. It began in 1857 and spread across several regions in India, with Indian soldiers and civilians fighting against British imperialism.

On the other hand, the American Civil War took place from 1861 to 1865 and was fought between the Northern states (Union) and the Southern states (Confederacy) in the United States. The war had a significant impact on the American society and marked a turning point in the history of slavery in the country.

By examining these two revolts, Rajmohan Gandhi likely explores the parallels, contrasts, and historical significance of these events. It provides insights into the struggles and aspirations of different peoples fighting for their independence and rights during these tumultuous periods in history.