Which one of the following was NOT a cause of the Revolt of 1857 ?

Which one of the following was NOT a cause of the Revolt of 1857 ?

[amp_mcq option1=”The rumour that the British had mixed the bone dust of cows and pigs into the flour being sold in the market” option2=”The prophecy that British rule would come to an end on the centenary of the Battle of Plassey on 23rd June, 1857″ option3=”Popular discontent with British rule” option4=”The prophecy that the end of British rule would lead to the end of the Kali Yuga and the return of Ram Rajya” correct=”option4″]