Who was approached for leadership by the sepoys of Meerut who broke out in mutiny against the British in 1857?

The correct option is Mughal emperor Bahadur Shah.

Step-by-Step Historical Explanation:
1. The Outbreak of the Revolt: On May 10, 1857, the Indian sepoys (soldiers) stationed at the military cantonment in Meerut mutinied against their British officers, marking the beginning of the Great Uprising of 1857.
2. The March to Delhi: After rebelling in Meerut, the sepoys set off for Delhi overnight and arrived at the gates of the city on the morning of May 11, 1857.
3. Seeking Imperial Legitimacy: The mutineers entered the Red Fort (Lal Qila) and gathered around the aging Mughal emperor, Bahadur Shah II (also known as Bahadur Shah Zafar). Although he was a pensioner of the British East India Company with no real political power, he was still widely recognized as the traditional and symbolic head of India. The sepoys sought his endorsement and leadership to unite different factions and give their rebellion political legitimacy.
4. Acceptance of Leadership: After initial hesitation, Bahadur Shah accepted the leadership of the rebellion. He was proclaimed the Shahenshah-e-Hindustan (Emperor of India). He subsequently wrote letters to various chiefs and rulers of India, urging them to unite and form a confederacy to fight against British rule.