Correct Answer: (b) Kanchenjunga
Solution:Kanchenjunga has been listed in 2018. Biosphere Reserves: Nilgiri, 2000, Gulf of Mannar, 2001, Sunderban, 2001, Nanda Devi, 2004, Nokrek, 2009, Pachmarhi, 2009, Similipal, 2009, Achanakmar-Amarkantak, 2012, Great Nicobar, 2013, Agasthyamala, 2016, Khangchendzonga, 2018