In 1920, which of the following changed its name to "Swarajya Sabha" ?

The All India Home Rule League changed its name to "Swarajya Sabha" in 1920 after Mahatma Gandhi was elected its president, signifying a shift toward the goal of self-rule (Swaraj). In contrast, the Servants of India Society, founded by G.K. Gokhale, maintained its distinct identity and focused on social service rather than undergoing this specific political rebranding. This question tests the core concept of the organizational transformation and leadership changes within nationalist bodies during the transition to the Gandhian era of the Indian National Movement.