Step 1: Understanding the historical context.
Nelson Mandela became the first black President of South Africa after the end of apartheid. He was elected in 1994, marking a historic moment in South Africa’s transition to a democratic nation.
Step 2: Identifying the correct option.
- (A) Prime Minister is incorrect because South Africa has a presidential system, not a parliamentary one.
- (B) Vice-President is incorrect because Mandela was the President, not the Vice-President.
- (C) President is correct because Mandela became the first black President of South Africa.
- (D) Defence Minister is incorrect because Mandela held the office of President, not Defence Minister.
Step 3: Conclusion.
Thus, the correct answer is (C) President.