In the following groups of wastes, which group contains only non-biodegradable wastes?

In the following groups of wastes, which group contains only non-biodegradable wastes?
(A) Leather footwear, Plastic plate, Polythene bag
(B) Empty medicine bottle, Milk packet, Aluminium can
(C) Used tea leaves, Cardboard box, Iron nail
(D) Plastic Syringes, Newspaper, Ball point pen

Correct Answer : Option (B) Empty medicine bottle, Milk packet, Aluminium can