What will be the output of the following code
import pandas as pd
dict1 = {'Nagaland': 'Kohima', 'Manipur': 'Imphal', 'Meghalaya': 'Shillong'}
ser = pd.Series(dict1)
ser.index=[1,2,3]
print(ser[['Nagaland','Meghalaya']])
1
Nagaland Kohima
Meghalaya Shillong
dtype: object
2
1 Kohima
3 Shillong
dtype: object
3
1 Kohima
2 Imphal
3 Shillong
dtype: object
4
Error