The number of stereoisomers possible for the following compound is $\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}(\mathrm{OH})-\mathrm{CH}_{3}$

• A

  1
• B

  2
• C

  3
• Correct answer
  D

  4

Solution

No. of S. $I=2^{n}=2^{2}=4$ \begin{array}{|ll|} \hline Cis & \mathrm{R} \\ Trans & \mathrm{R} \\ Cis & \mathrm{S} \\ Trans & \mathrm{S} \\ \hline \end{array}

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