Given below are four matchings of an animal and its kind of respiratory organ: (I) Silver fish - Trachea (II) Scorpion - Book lung (III) Sea squirt - Pharyngeal gills (IV) Dolphin - Skin The correct matchings are

• A

  (I) and (II)
• Correct answer
  B

  (I), (II) and (III)
• C

  (II) and (IV)
• D

  (III) and (IV)

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