Correct answer: B. Revolt of 1857
Explanation: The direct answer is B: the Revolt of 1857. Rani Lakshmibai was the queen of Jhansi and became one of the best-known leaders and symbols of the uprising against British rule in 1857. After the British refused to accept her adopted son as the heir under their annexation policy, conflict grew around Jhansi. She defended the fort and later fought bravely at several places, becoming remembered for courage, leadership, and resistance. Step by step: identify Rani Lakshmibai; connect her with Jhansi; place Jhansi’s major armed resistance in 1857; choose the revolt named in option B. Option A, the Sanyasi Rebellion, occurred earlier in eastern India and is not the revolt most famously connected with her. Option B is correct because her leadership in Jhansi is a central part of the history and memory of the 1857 uprising. Option C, the Paika Rebellion, took place in Odisha in 1817, before 1857, and had different leaders and circumstances. Option D, the Swadeshi Movement, began mainly in the early twentieth century after the partition of Bengal and is not the revolt associated with her. Do not confuse the date or movement. Memory cue: Jhansi, courage, and 1857 point directly to Rani Lakshmibai.