The correct option is D Comprehensive encyclopaedia
A comprehensive encyclopaedia or Vishwakosh is of two types:
(a) It includes all subjects under the sun. For example, ‘Encyclopaedia Britannica’, ‘Maharashtriya Dnyankosh’, ‘Marathi Vishvakosh’, etc.
(b) It includes comprehensive information on one chosen subject. For example, ‘Bharatiya Samskruti Kosh’, ‘Vyayam Dnyankosh’, etc.