Select the correct statement about biodiversity.

• A

  The desert areas of Rajasthan and Gujarat have a very high level of desert animal species as well as numerous rare animals.

• B

  Large scale planting of $Bt$ cotton has no adverse effect on biodiversity.

• C

  Western ghats have a very high degree of species richness and endemism.

• D

  Conservation of biodiversity is just a fad pursued by the developed countries.