Explanation: The Revolt of 1857, also known as the Indian Rebellion of 1857, was a significant uprising against British rule in India. It was a widespread and multifaceted movement that involved various regions and centers of rebellion. Among these, Delhi, Lucknow, and Meerut were particularly important.
**Delhi** was the capital of the Mughal Empire and the seat of Bahadur Shah Zafar, the last Mughal Emperor. The city was a focal point for the rebellion, as the rebels proclaimed Bahadur Shah Zafar as the Emperor of India. The British forces faced significant resistance in Delhi, and the city saw intense fighting. The capture of Delhi by the British was a turning point in the Revolt, as it weakened the morale and organization of the rebels.
**Lucknow**, the capital of Awadh, was another major center of the Revolt. The Siege of Lucknow, where British forces were besieged in the Residency, was a critical event in the Revolt. The city was a stronghold for the rebels, and the prolonged siege demonstrated the strength and determination of the rebel forces. The British eventually managed to relieve the siege, but the city remained a significant site of conflict throughout the Revolt.
**Meerut** was the site of the initial mutiny that sparked the Revolt of 1857. On May 10, 1857, Indian soldiers of the 3rd Light Cavalry of the British East India Company refused to use the new Enfield rifle cartridges, which were rumored to be greased with cow and pig fat. This act of defiance led to the mutiny and the subsequent spread of the rebellion. The mutiny in Meerut set off a chain of events that led to widespread uprisings across northern and central India.
Each of these cities played a crucial role in the Revolt of 1857, and their significance cannot be overstated. The Revolt was a complex and multifaceted movement that involved various centers of rebellion, and the events in Delhi, Lucknow, and Meerut were integral to the overall narrative of the Revolt. Therefore, the correct answer is that all of the above cities were major centers of the Revolt.
Understanding the roles of these cities in the Revolt of 1857 is essential for comprehending the broader context of the rebellion and its impact on the history of India. The Revolt marked a significant turning point in the relationship between the British and the Indian people, leading to the end of the East India Company's rule and the establishment of direct British rule over India.