The correct options are
A He organised various agitations against the policy of Apartheid.
C He fought the unjust laws by using the method of Satyagraha.
Apartheid was a system of legislation that upheld segregationist policies against non-white citizens of South Africa. Mahatma Gandhi organised various agitations against the policy of Apartheid. He employed a new, non-violent method of agitation, Satyagraha to fight against the unjust laws and became a leader of the struggle for justice in South Africa.