The correct option is B I, II and III
Disposal of solid wastes has become a major concern in the present times because the amount of waste generated has increased manifold due to increased population and urbanisation. Disposing of solid wastes by burning, burying in sanitary landfills, etc. often lead to environmental pollution, which is undesirable. Thus, the most sustainable solution to the problem of waste disposal is to reduce waste generation.
This is in accordance with the 3R principle of reduce, reuse and recycle. We can reduce waste generation by reusing waste items or recycling them to be used in the production of new products.
Plastic is a non-biodegradable substance that persists in the environment even after being dumped in the ground or buried in landfills. Thus the reduction in the use of plastic is the only way to reduce the generation of plastic wastes as there are not many effective ways to dispose of plastic without harming the environment. Hence, it is better to prefer buying items that use plastic free packaging.
Replacing polythene (plastic) bags with cotton cloth or paper bags, both of which are biodegradable, for the purpose of shopping or carrying items is one way of reducing the use of plastic. Hence statements I, II and III are correct.