Arrange the following key events in Dr. B. R. Ambedkar's life in chronological (ascending) order: (A) Conversion to Buddhism (B) Publication of 'Annihilation of Caste' (C) Poona Pact (D) Formation of Independent Labour Party Choose the correct answer:

What was the profession of Swami Vivekananda's father, Vishwanath Datta?

Identify the true statement(s) regarding Dr. B. R. Ambedkar's self-described ideological stance: 1. Ambedkar described himself as a 'progressive radical'. 2. Ambedkar also considered himself a 'progressive conservative'.