The correct answer is: C. 1877 AD
The Mass Movement in Nalagarh took place in 1877 AD. It was a peasant uprising against the oppressive rule of the Maharaja of Nalagarh. The uprising was led by a peasant leader named Jhanda Singh. The peasants were demanding lower taxes and better working conditions. The uprising was brutally suppressed by the Maharaja’s forces. Many peasants were killed and injured. The uprising failed to achieve its goals, but it did raise awareness of the plight of the peasants in Nalagarh.
Option A is incorrect because the Mass Movement in Nalagarh did not take place in 1855 AD. The Mass Movement in Nalagarh took place in 1877 AD.
Option B is incorrect because the Mass Movement in Nalagarh did not take place in 1866 AD. The Mass Movement in Nalagarh took place in 1877 AD.
Option D is incorrect because the Mass Movement in Nalagarh did not take place in 1888 AD. The Mass Movement in Nalagarh took place in 1877 AD.