(C) Jyotiba Phule – Gulamgiri
Jyotiba Phule wrote Gulamgiri (1873), which means slavery, highlighting the oppression of lower castes.
The other options are incorrect: Ram Chaddha is not associated with Bengal Gazette (that was James Augustus Hickey); Gangadhar Bhattacharya is not linked to Kesari (Tilak's newspaper); Rashsundari Devi wrote Amar Jiban, not Padmarg. Jyotiba Phule–Gulamgiri is the only correctly matched pair. Note: The source passages provided do not cover this topic directly, but this is standard CBSE Class 10 History (Print Culture and the Modern World / Social and Religious Reform chapter) content.