ANSWER is A, C, D. NAGALAND shares the borders with Arunachal Pradesh, Manipur and Assam.About Nagaland:In 1962, Nagaland was created as a separate state.Its capital is Kohima.Its current Governor is RN Ravi.Its current Chief Minister is Neiphiu Rio.It shares an international border with Myanmar.Nagaland has the lowest Scheduled Caste Population.Ntangki National ParkFakim WILDLIFE SanctuaryAssam-Kaziranga National Park- famous for One-Horned Rhinoceros. It is also included in UNESCO World Heritage Site.Dibru-Saikhowa National Park famous for the Feral horse, Golden Langur.Manas National Park famous for Golden Langur, Red Panda. It is also included in UNESCO World Heritage Site.Nameri National Park Orang National ParkMeghalaya-Balphakram National ParkNokrek National Park famous for Red Panda. It is also included in UNESCO World Biosphere Reserve.Manipur Keibul Lamjao National ParkSirohi National ParkNepal shares a border of about 1850 km with five Indian States - Uttarakhand, Uttar Pradesh, BIHAR, West BENGAL and Sikkim.India and China share a 3,488-km long border running along with Arunachal Pradesh, Sikkim, Uttarakhand, Himachal Pradesh and Ladakh.Four North-Eastern States i.e Arunachal Pradesh, Nagaland, Manipur and Mizoram share an international boundary with Myanmar.Five Indian states – Assam, West Bengal, Mizoram, Meghalaya, and Tripura shares borders with Bangladesh.