The correct option is D All of these
Management of solid waste involves several steps such as collection, transportation, and dumping. The collection is not an easy task and is done on a regular basis but requires a lot of labor and routine. In India, it is mostly done manually in cities and towns, next thing is the transportation of waste to the treatment site which requires effort and containers to take out the waste without wasting time so that it can be treated effectively. Dumping is becoming a major problem as many of the landfill sites are overfilled and waste is excessive so dumping solid waste is the last step to dispose of the waste.