The correct option is C All of these
Eco-mark is a certification issued by Bureau of Indian Standards to products which cause less harm to the environment than their close alternatives, and meet some minimum requirements laid down by the Ministry of Environment and Forests. Sixteen categories of products have been identified in the list which includes soaps and detergents, paints, food items, food additives and preservatives, paper, wood substances, textiles, batteries, lubricating oil, vegetable oils, packaging, plastics, cosmetics, aerosols, pesticides and drugs and electronic goods.