Explanation:

- Correct Answer: Option 1 - Ravish Kumar

- Ravish Kumar, an Indian journalist and television anchor, is the author of "The Free Voice: On Democracy, Culture and the Nation." He is known for his in-depth reporting and critical analysis on social issues and politics in India. This book discusses the challenges faced by Indian democracy, free speech, and media independence.

- Option 2 - Arnab Goswami

- Arnab Goswami is a prominent Indian journalist and television news anchor, known for his aggressive and opinionated style of journalism. He is the managing director and editor-in-chief of Republic TV.

- Option 3 - Barkha Dutt

- Barkha Dutt is an acclaimed Indian television journalist and columnist. She has gained recognition for her coverage of prominent events, including the Kargil War, but she is not the author of "The Free Voice."

- Option 4 - Rahul Kanwal

- Rahul Kanwal is a well-known Indian journalist and news anchor, currently associated with India Today Group. He has not authored the book "The Free Voice."