List-I contains various reaction sequences and List-II contains the possible products. Match each entry in List-I with the appropriate entry in List-II and choose the correct option.

• Correct answer
  A

  $\mathrm{P}-3, \mathrm{Q}-5, \mathrm{R}-4, \mathrm{~S}-1$
• B

  $\mathrm{P}-3, \mathrm{Q}-2, \mathrm{R}-4, \mathrm{~S}-1$
• C

  $\mathrm{P}-3, \mathrm{Q}-5, \mathrm{R}-1, \mathrm{~S}-4$
• D

  $\mathrm{P}-5, \mathrm{Q}-2, \mathrm{R}-4, \mathrm{~S}-1$

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