Correct Answer: (a) The local Rajput rulers did not supports revolutionaries.
Solution:Expansion in limited areas, lack of unity and planning, no unified leadership and discipline, better resources of the British, role of traitors, the return of British troops from Crimea, no support of native rulers, non-cooperation of Sikhs and Punjabis as well as educated Indian middle class etc. were major causes behind the failure of the revolt of 1857.