Chloroethane reacts with Y to form NaCl and Z. One mole of Z reacts with two moles of Hi to form water and iodo ethane. Which of the following is Y ?

Question

( A ) $CH_3COOH$
( B ) $CH_3CHO$
( C ) $C_2H_5ONa%$
( D ) $C_2H_5OC_2H_5$