The correct answer is D. Arvind Subramaniam.
Arvind Subramaniam is an Indian economist who served as the Chief Economic Advisor to the Government of India from 2014 to 2017. He is currently a Distinguished Visiting Fellow at the Peterson Institute for International Economics.
Najma Heptulla is an Indian politician who served as the Governor of Manipur from 2015 to 2017 and as the Governor of Telangana from 2017 to 2020. She is a member of the Indian National Congress.
Ram Nath Kovind is an Indian politician who is the 14th and current President of India. He was the Governor of Bihar from 2015 to 2017. He is a member of the Bharatiya Janata Party.
Acharya Dev Vrat is an Indian politician who served as the Governor of Himachal Pradesh from 2003 to 2007. He is a member of the Bharatiya Janata Party.