A great deal of indoor air pollution comes from

The correct answer is C. cooking.

Indoor air pollution is a major health concern, especially for children, the elderly, and people with respiratory problems. It can cause a variety of health problems, including respiratory infections, heart disease, and cancer.

The main sources of indoor air pollution are:

• Cooking: Cooking releases a variety of pollutants into the air, including carbon monoxide, nitrogen dioxide, and particulate matter.
• Heating and cooling systems: These systems can release pollutants such as dust, mold, and bacteria into the air.
• Household products: Cleaning products, air fresheners, and other household products can release pollutants into the air.
• Building materials: Building materials such as carpets, furniture, and paint can release pollutants into the air.

You can reduce your exposure to indoor air pollution by:

• Using exhaust fans when cooking
• Keeping your heating and cooling systems clean and well-maintained
• Using low-emitting household products
• Choosing low-emitting building materials
• Airing out your home regularly

If you are concerned about indoor air pollution, you can talk to your doctor or a qualified environmental health professional.