Rich in fauna and flora areas:

A. Northern mountainous areas embracing Himalayan, Korakoram and Hindu Kush ranges
B. In northern areas, Malakand, Hazara and Azad Kashmir are rich in fauna and flora
C. Both (a) & (b)
D. None of these

The correct answer to the question: "Rich in fauna and flora areas:" is "Both (a) & (b) ".