Compound A, ${\mathrm{C}}_8{\mathrm{H}}_{10}\mathrm{O},$ is found to react with $\mathrm{NaOI}$ (produced by reacting Y with NaOH ) and yields a yellow precipitate with characteristic smell. A and Y are respectively

• A

   

  

• B

   

  

• C

   

  

• D