In the following groups of materials,which group$(s)$ contains only non-biodegradable items?
$(i)$ Wood,paper,leather
$(ii)$ Polythene,detergent,$PVC$
$(iii)$ Plastic,detergent,grass
$(iv)$ Plastic,bakelite,$DDT$

  • A
    $(iii)$
  • B
    $(iv)$
  • C
    $(i)$ and $(iii)$
  • D
    $(ii)$ and $(iv)$

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