Identify the correct statements from the following

A.  $Si{F}_6^{2-}$ exists but not $SiC{\mathrm{l}}_6^{2-}$
B. $\left[Ar\right]3d^{10}4s^{2}4p^2$  is the electronic configuration of an element which is used as a semiconductor
C. Both  $CC{\mathrm{l}}_4$ and $SiC{l}_4$ undergo hydrolysis 
D. In +4 oxidation state lead acts as a reducing agent  
E.  $Pb{I}_4$ does not exist

A.  $Si{F}_6^{2-}$ exists but not $SiC{\mathrm{l}}_6^{2-}$
B. $\left[Ar\right]3d^{10}4s^{2}4p^2$  is the electronic configuration of an element which is used as a semiconductor
C. Both  $CC{\mathrm{l}}_4$ undergo hydrolysis due to absence of d-orbitals at carbon and $SiC{l}_4$ undergo hydrolysis.
D. In +4 oxidation state lead acts as a oxidising  agent  
E.  $Pb{I}_4$ Does not exist