Lead and cadmium compounds are added as stabilizers in PVC. Which statement is correct regarding lead and cadmium?
I. Lead and cadmium can leach out during human contact, or when disposed in land-fills
II. Lead and cadmium are known neurotoxins and nephrotoxins respectively
III. These chemicals are used in the manufacture of soft plastic items such as vinyl flooring sheets, soft toys etc. to increase their durability
(a) I & II (b) II & III (c) Only III (d) All the above