Which information below regarding this reaction is applicable?
$CH_3-O-CH_2-Cl \xrightarrow{aq. OH^-, \Delta} CH_3-O-CH_2-OH$

• A
  It follows $S_{N}2$ pathway,because it is a primary alkyl chloride.
• B
  It follows $S_{N}1$ pathway,because the intermediate carbocation is resonance stabilized.
• C
  $S_{N}1$ pathway is not followed,because the intermediate carbocation is destabilised by $-I$ effect of oxygen.
• D
  $A$ mixed $S_{N}1$ and $S_{N}2$ pathway is followed.