The correct answer is: C. Packaging materials
Packaging materials are the most common type of residential and commercial waste. They are used to protect and transport goods, and they can be made from a variety of materials, including paper, plastic, metal, and glass. Packaging materials can be recycled, but they often end up in landfills, where they can take hundreds of years to decompose.
Food waste is another major type of residential and commercial waste. It is estimated that about 40% of all food produced for human consumption is wasted each year. Food waste can be composted, but it often ends up in landfills, where it releases methane, a greenhouse gas that is more potent than carbon dioxide.
Cardboard is a type of packaging material that is made from wood pulp. It is a recyclable material, but it often ends up in landfills. Cardboard can take up to 100 years to decompose in a landfill.
None of the above is not the correct answer. Packaging materials are the most common type of residential and commercial waste.