Explanation:

Correct Option: (a) Explanation  Statement 1 is incorrect: It is endemic to Arunachal Pradesh in northeast India.  Statement 2 is correct: The squirrels are nocturnal and is critically endangered on the IUCN red list.  It is known from a single specimen collected in 1981 in Namdapha National Park. Supplementary Notes Namdapha fl ying squirrel  Its range of the Namdapha fl ying squirrel may be restricted to a single valley and it is threatened by poaching of animals for food from within the park, and possibly by habitat destruction.  It is among the 25 “most wanted lost” species that are the focus of Global Wildlife Conservation’s “Search for Lost Species” initiative.  Like other fl ying squirrels, the most distinctive feature of this species is the furred, muscular membrane that extends along the sides of the body, from the front limbs to the hind legs.  The Namdapha fl ying squirrel inhabits temperate broadleaf forests.