Correct Option (A):
The Lion-tailed Macaque (Macaca silenus) is an endangered primate species endemic to the Western Ghats of India. Its natural habitat primarily consists of the evergreen rainforests within the following states:
- Tamil Nadu (e.g., Anamalai Hills, Kalakkad Mundanthurai Tiger Reserve)
- Kerala (e.g., Silent Valley National Park, Periyar Tiger Reserve)
- Karnataka (e.g., Sharavathi Valley, Kudremukh National Park, Brahmagiri Wildlife Sanctuary)
Therefore, the species is naturally found in Tamil Nadu, Kerala, and Karnataka, making option (A) the correct choice.
Incorrect Options:
Option (B) is incorrect because while Kerala is a habitat for the Lion-tailed Macaque, the species is also found in Tamil Nadu and Karnataka, making the option incomplete.
Option (C) is incorrect as the Lion-tailed Macaque is not found in its natural habitat in Andhra Pradesh. This option also omits Kerala from the list of states where it is found.
Option (D) is incorrect because it includes Andhra Pradesh, which is not part of the natural range of the Lion-tailed Macaque.