How Would One Carry Out the Following Transformation?
A) $\degree$

How would one carry out the following transformation?

A) NaNO₂,HCl,0-5 $\degree$ C;then HNO₃
B) NaNO₂,HCl,0-5 $\degree$ C;then H₃PO₂
C) NaNO₂,HCl,0-5 $\degree$ C;then H₂,Ni
D) C₆H₅SO₂Cl,OH^-;then HCl
E) NaH,DMSO