The arrangements of the following polymers in increasing order of their intermolecular forces is

Question

$\begin{array}{1 1}(a)\;\text{Polythene < Nylon-66 < Buna-S}\\(b)\; \text{Buna-S < Polythene < Nylon-66}\\(c)\;\text{ Polythene < Buns-S < Nylon-66}\\(d)\;\text{Nylon-66 < Buna-S < Polythene}\end{array}$