Arrange the following biosphere reserves in decreasing order of their geographical area:
1
Nanda Devi > Panchmarhi > Agasthyamalai > Panna > Khangchendzonga
2
Nanda Devi > Panchmarhi > Panna > Agasthyamalai > Khangchendzonga
3
Panchmarhi > Nanda Devi > Agasthyamalai > Panna > Khangchendzonga
4
More than one of the above
5
None of the above