Which of the following statements is correct?

Statement B is correct, Silicon does not form $\mathrm{Si}=\mathrm{O}$ double bonds.

Silicon forms $-\mathrm{O}-\mathrm{Si}-\mathrm{O}-\mathrm{Si}-$ linkages. It does not form $\mathrm{p}\pi -\mathrm{p}\pi$ double bonds with oxygen due to its large size which prevents effective overlap between 2p(Si) and 2p(O) orbitals. 

Hence, the option B is correct.