Final answer:
Gandhi was 24 when he went to South Africa on a significant journey that influenced his advocacy for non-violent civil disobedience, contributing to his later leadership in India's independence movement.
Step-by-step explanation:
When Gandhi was 24 years old, he set sail on a seven-week journey to South Africa. Option B) 35, South Africa is the correct answer to the question about when and where Gandhi began an important part of his life's work. Gandhi, also known as Mahatma Gandhi, went to South Africa to work as a lawyer for the Indian community. Over time, he faced racial discrimination and began to organize on behalf of non-whites. Although Gandhi received an education as a lawyer in England, it was during his 25 years in South Africa that he developed his philosophy of non-violent civil disobedience. This pivotal experience became a foundation for his later work in leading India towards independence from British colonial rule.