The major products $X$ and $Y$ in the following sequence of transformations are:

• A
  $X = \text{3-hydroxybenzenesulfonic acid}, Y = \text{3-carboxybenzenesulfonic acid}$
• B
  $X = \text{phenol}, Y = \text{benzoic acid}$
• C
  $X = \text{2-hydroxybenzenesulfonic acid}, Y = \text{2-hydroxybenzoic acid}$
• D
  $X = \text{phenol}, Y = \text{2-hydroxybenzoic acid}$