The correct answer is: a) Sikkim Sewa Ratna.
The Sikkim Sewa Ratna is the highest civilian award in the Indian state of Sikkim. It was instituted in 1974 by the Government of Sikkim to recognize and reward outstanding service to the state. The award is given to individuals who have made significant contributions in the fields of art, culture, education, literature, science, sports, social service, and public administration.
The Sikkim Sewa Ratna is a gold medal with a citation. It is awarded by the Governor of Sikkim on the recommendation of a committee appointed by the Government of Sikkim.
The other options are incorrect because:
- b) Sikkim Ratna is the second highest civilian award in Sikkim.
- c) Kanchenjunga Award is a mountaineering award given by the Government of Sikkim to mountaineers who have successfully climbed Mount Kanchenjunga.
- d) Himalayan Achievement Award is a sports award given by the Government of Sikkim to athletes who have achieved outstanding success in international competitions.