When did Smith‚Äö√Ñ√∂‚àö√ë‚àö¬®Waterman first describe the algorithm for local alignment?

When did Smith‚Äö√Ñ√∂‚àö√ë‚àö¬®Waterman first

1.	When did Smith‚Äö√Ñ√∂‚àö√ë‚àö¬®Waterman first describe the algorithm for local alignment?
A.	1950
B.	1970
C.	1981
D.	1925
Answer» D. 1925