The correct options are
A Awareness programs should be conducted in schools, offices, etc.
C Citizens should be urged to segregate waste.
D Encourage citizens to follow the 3 R principle.
Government needs to take steps to prevent improper disposal of waste. In schools, offices and other organisations, awareness programs should be conducted. Waste segregation should be a compulsory step in waste management. They should also urge people to follow the 3R principle, i.e., to reduce, reuse and recycle.