The straight chain polymer is formed by
A. hydrolysis of `(CH_(3))_(4)SiCl_(3)` by addition condensation polymerisation
B. hydrolysis of `(CH_(3))_(4)Si` by addition polymerisation
C. hydrolysis of `(CH_(3))_(2)SiCl_(2)` followed by condensation polymerisation
D. hydrolysis of `(CH_(3))_(3)SiCl` followed by condensation polymerisation