The straight chain polymer is formed by
(a) Hydrolysis of (CH3)2 SiCl2 followed by condensation polymerization
(b) Hydrolysis of (CH3)3 SiCl followed by condensation polymerisation
(c) Hydrolysis of CH3 SiCl3 followed by condensation polymerisation
(d) Hydrolysis of (CH3)4 Si by addition polymerisation