Which statement from the passage supports the idea that Nelson Mandela was a courageous man? Nelson Mandela

Nelson Mandela is known throughout the world for his fight against apartheid, the separation of blacks and whites. In 1944, while in his 20s, Mandela joined the African National Congress (ANC). The ANC was a political organization that fought against the racist policies of the South African government.
Mandela led a peaceful resistance against the South African government for 20 years. He implemented strategies such as boycotts, strikes, civil disobedience, and non-cooperation. As a leader of the ANC, Mandela fought for blacks to have the right to vote and to travel without the use of documents called dompas. Mandela also fought for workers' rights and for free education for children of all colors.
In 1960, the South African government banned the ANC. The organization went underground. Mandela decided that peaceful resistance was ineffective in the fight to end apartheid. He began supporting militant or aggressive actions against the South African government. In 1962, Mandela was arrested for leading a national workers' strike. The South African government sentenced him to five years in prison. While in prison, Mandela was charged with sabotage and was sentenced to life in prison.
The South African government had hoped that locking Mandela behind bars would discourage his followers. However, Mandela became a symbol for the anti-apartheid movement. In 1985, President P. W. Botha tried to make a deal with Mandela. He offered to set Mandela free if Mandela agreed to call off the armed fight against apartheid. Mandela immediately declined this offer.
In 1989, Frederik Willem de Klerk became the president of South Africa. He released Mandela from prison in 1990 and lifted the ban on the ANC. After spending 27 years in prison, Mandela continued to pressure the South African government to end apartheid. He called on foreign leaders to join him in the fight for blacks to have the same rights as whites. Mandela also continued to support the ANC's use of weapons against the South African government.
Mandela worked with President F. W. de Klerk to establish the first multiracial elections in South Africa. In 1993, both men received the Nobel Peace Prize for their efforts to end apartheid. The government of South Africa held the first democratic elections in 1994. Nelson Mandela won the election and became the first black president of South Africa.

A. Nelson Mandela won the election and became the first black president of South Africa.
B. In 1944, while in his 20s, Mandela joined the African National Congress (ANC).
C. After spending 27 years in prison, Mandela continued to pressure the South African government to end apartheid.
D. He offered to set Mandela free if Mandela agreed to call off the armed fight against apartheid.