An alkene $\text{'}\mathrm{A}\text{'}$ on reaction with ${\mathrm{O}}_3$ and $\mathrm{Z}\mathrm{n}-{\mathrm{H}}_2\mathrm{O}$ gives propanone and ethanal in equimolar ratio. Additional of $\mathrm{H}\mathrm{C}\mathrm{l}$ to alkene $\text{'}\mathrm{A}\text{'}$ gives $\text{'}\mathrm{B}\text{'}$ as the major product. The structure of product $\text{'}\mathrm{B}\text{'}$ is:

• A

  
• B

  
• Correct answer
  C

  
• D

  

Hence, the correct answer is option: 'C'.