Correct Option: A

The Indian Rebellion of 1857 began as a mutiny of sepoys of the East India Company's army on 10 May 1857, in the town of Meerut, and soon escalated into other mutinies and civilian rebellions largely in the upper Gangetic plain and central India, with the major hostilities confined to present-day Uttar Pradesh, Bihar, northern Madhya Pradesh, and the Delhi region. Some of the famous leaders of the revolt were: Kanpur: Nana Saheb; Jhansi: Rani Laxmi Bai; and Lucknow: Begum Hazrat Mahal.