Python3, column names from array - numpy or pandas

[renjith madhavan]

I have a dataset in the below format.

id	A	B	C	D	E
100	1	0	0	0	0
101	0	1	1	0	0
102	1	0	0	0	0
103	0	0	0	1	1

I would like to convert this into below:
100, A
101, B C
102, A
103, D E

How do I do this ? I tried numpy argsort but I am new to Python and finding this challenging.
Appreciate any help in this.