Which amongst the following is/are correct?

1. Indian society during nineteenth century was marred by religious superstitions and social obscurantism.

2. Social conditions of women were good but some vices like sati, child marriage prevailed in the society

3. Raja Ram Mohan said “Sati is murder according to every shastra”.

4. People at lower ladder of the society were called untouchables, who formed about 20 percent of population.