Concept:Ghana has had four republics: First Republic (1960-1966), Second Republic (1969-1972), Third Republic (1979-1981) and Fourth Republic (1993 to date).
Solution:Dr. Kwame Nkrumah was President of the First Republic.
Dr. K.A. Busia was Prime Minister in the Second Republic.
Dr. Hilla Limann was elected and became President of the Third Republic in 1979; it ended with the coup of 31 December 1981.
Prof. Evans Atta Mills was President in the Fourth Republic (2009-2012).
So the President of the Third Republic was Dr. Hilla Limann.
Answer:Option C (Dr. Hilla Limann)