Correct answer: A. Tirot Sing
Explanation: The direct answer is A: Tirot Sing. The Khasi uprising took place in the Khasi Hills of present-day Meghalaya during the early nineteenth-century expansion of British power. Tirot Sing, a Khasi chief, is remembered as its prominent leader. He resisted British attempts to construct a road through the hills and extend control over the region. Option A is correct. Option B, Alluri Sitarama Raju, led the Rampa rebellion in the Andhra region, not the Khasi uprising. Option C, Kunwar Singh, was a major leader of the 1857 revolt in Bihar. Option D, Nana Sahib, was associated with the 1857 revolt around Kanpur. Thus all three other names belong to different movements and regions. Memory cue: Khasi Hills and Tirot Sing belong together; Alluri belongs to Rampa, Kunwar Singh to Bihar, and Nana Sahib to Kanpur.