When was the State Mineral Development Corporation established for the development of minerals in Rajasthan?

When was the State Mineral Development Corporation established for the

1.	When was the State Mineral Development Corporation established for the development of minerals in Rajasthan?
A.	in November 1978
B.	in November 1979
C.	in November 1980
D.	in November 1989
Answer» C. in November 1980