Explanation
- A
Low-density polyethylene
LDPE. Bags and film; not BPA.
- B
Polycarbonate
Polycarbonate. BPA is the monomer for many PC bottles and linings.
- C
Polyethylene terephthalate
PET. Soft-drink bottles; different chemistry.
- D
Polyvinyl chloride
PVC. Vinyl chloride, not BPA.
Summary. Official key is (b) polycarbonate. Bisphenol A is the building block of polycarbonate plastics and of some epoxy can linings — the health scare of the 2010s.
Same topic · past papers
UPSC has asked this before
These previous-year questions sit on the same topic. Open one to practise the earlier ask.