According to which issue of guidelines did the RBI grant approval for the setting up of 13 new privately-owned domestic banks?

According to which issue of guidelines did the RBI grant approval for

1.	According to which issue of guidelines did the RBI grant approval for the setting up of 13 new privately-owned domestic banks?
A.	April, 1980
B.	March, 1971
C.	January, 1993
D.	September, 1993
Answer» D. September, 1993