Which of the following is a polyamide class polymer?

The polymer used for optical lenses is

Example of a biodegradable polymer pair is

Which of the following polymers is obtained from isoprene?

Which among the following polymers is used to make crockeries?

Given $A = \text{Nylon-}6,6$,$B = \text{Buna-}S$,and $C = \text{Polythene}$. Arrange these polymers in the increasing order of their intermolecular forces (from weakest to strongest).