The Physical Properties of Polymers Depend On

The physical properties of polymers depend on:
I.the average molecular mass of a chain
II.the strength of intermolecular forces between the chains
III.the reaction temperature applied during synthesis
IV.the degree of crystallinity
V.the reaction pressure

A) I,II,and IV
B) II,III,and IV
C) I,II,and V
D) III,IV,and V
E) II,IV,and V