Statement-$I$: Most carboxylic acids exist as dimers in vapour phase or in aprotic solvents due to intermolecular hydrogen bonding.
Statement-$II$: Higher carboxylic acids are practically insoluble in water due to the increased hydrophobic interaction of the hydrocarbon part.

• A
  Statement $I$ is correct and Statement $II$ is incorrect
• B
  Statement $I$ is incorrect and Statement $II$ is correct
• C
  Both Statement $I$ and Statement $II$ are correct
• D
  Both Statement $I$ and Statement $II$ are incorrect