The Rakhmabai case of 1884 is significant in Indian history as it highlighted the issues of age of consent and restitution of conjugal rights. Rakhmabai, a young woman who was married at the age of 11, challenged her husband’s attempts to enforce a legal demand for cohabitation, which brought attention to the rights of married women and the injustices of child marriage. This case ultimately contributed to legal reforms including the Age of Consent Act of 1891 and played a crucial role in the broader women’s rights movement in India. Thus, the correct option focuses on the societal and legal implications tied to women's rights in the context of marriage and consent, making it a key historical milestone.