How many version /s of IP‚Äö√Ñ√∂‚àö√ë‚àö¬•s are there?$

How many version /s of IP‚Äö√Ñ√∂‚àö√ë‚àö¬•s a

1.	How many version /s of IP‚Äö√Ñ√∂‚àö√ë‚àö¬•s are there?$
A.	4 versions
B.	3 versions
C.	2 versions
D.	1 version
Answer» D. 1 version