The correct option is
C C2H5OHFirst alkyl halide form from alcohol, which then reacts with sodium ethoxide and ether forms as product.
Reaction of process:
C2H5OH+SOCl2→C2H5Cl+SO2+HCl
(A) (B)
C2H5OH+Na→C2H5ONa+12H2↑
(A) (C)
C2H5Cl+C2H5ONa→C2H5−O−C2H5+NaCl
(B) (C)
Last step is Williamson's ether synthesis.
Option C is correct.