Raja Rammohan Roy, also known as the "Maker of Modern India," was a prominent social reformer, philosopher, and intellectual during the early 19th century. He played a significant role in various social, religious, and educational reforms in India. The correct answer to the given question is option 'A', which states that Raja Rammohan Roy attacked polygamy and the degraded conditions of widows, championed women's rights like the right of inheritance and property, and campaigned against the practice of Sati, succeeding in getting it abolished by the British Government.

I. Attack on Polygamy and the Degraded Conditions of Widows:
Rammohan Roy strongly criticized the prevalent practice of polygamy in society. He believed that polygamy led to the exploitation of women and the degradation of their status. He advocated for monogamy and stressed the importance of treating women with respect and equality. He also condemned the ill-treatment and neglect faced by widows in society. He emphasized the need to improve the conditions of widows and provide them with better social and economic opportunities.

II. Championing Women's Rights:
Rammohan Roy was a staunch advocate for women's rights and worked towards securing equal rights for women. He fought for the right of women to inherit property and advocated for their right to own and manage their own assets. He believed that women should have the same legal and social status as men. Rammohan Roy's efforts laid the foundation for the women's rights movement in India.

III. Campaign Against the Practice of Sati:
One of Rammohan Roy's most significant contributions was his campaign against the practice of Sati, which involved the immolation of widows on their husband's funeral pyres. He vehemently opposed this inhumane practice and considered it to be a violation of human rights. Rammohan Roy tirelessly campaigned against Sati by organizing public debates, publishing articles, and lobbying the British Government for its abolition. His efforts were successful, and in 1829, the British Government passed the Bengal Sati Regulation Act, which banned the practice of Sati.

IV. Fight for the Spread of Traditional Education through the Medium of Sanskrit:
Contrary to the given options, Rammohan Roy did not fight for the spread of traditional education through the medium of Sanskrit. Instead, he focused on advocating for modern education and the promotion of English as a medium of instruction. He believed that a knowledge of English and modern sciences would empower Indians and enable them to compete on a global level.

In conclusion, Raja Rammohan Roy played a crucial role in various social reforms in India. He attacked polygamy and the degraded conditions of widows, championed women's rights, and campaigned against the practice of Sati, ultimately succeeding in getting it abolished by the British Government. However, he did not fight for the spread of traditional education through the medium of Sanskrit.