The correct options are
A Per annum income is less than INR 50,000/-
B Scheduled castes and scheduled tribes
The Lok Adalat is for citizens of the vulnerable population of scheduled castes and scheduled tribes. It is also for citizens with annual income of less than 50,000/- rupees. Beggars, mentally and physically challenged people, victims of human trafficking, and caste enemity can approach for help. Not just the victims of violence, but also the victims of natural disasters.