Some substances are given below:
$Ag$; $CO_{2(s)}$; $SiO_2$; $ZnS$;
$SO_{2(s)}$; $AlN$; $HCl_{(s)}$; $H_2O_{(s)}$
The number of molecular solids and network solids in the above list is respectively

• A
  $3, 3$
• B
  $2, 4$
• C
  $4, 2$
• D
  $3, 2$