The number of activating and deactivating groups of the following are respectively $-\mathrm{OCH}_2 \mathrm{CH}_3,-\mathrm{COCH}_3,-\mathrm{NHCOCH}_3,-\mathrm{COOCH}_3,-\mathrm{SO}_3 \mathrm{H}$

• Correct answer
  A

  2,3
• B

  3,2
• C

  1,4
• D

  4,1

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