To answer this question, we need to understand the sports that Swami Vivekananda participated in and won a first prize and a silver butterfly.
Option A) Chess - This option is incorrect because there is no record of Swami Vivekananda participating in chess or winning a first prize and a silver butterfly in this sport.
Option B) Football - This option is incorrect because there is no record of Swami Vivekananda participating in football or winning a first prize and a silver butterfly in this sport.
Option C) Boxing - This option is correct because Swami Vivekananda won a first prize and a silver butterfly in boxing. He was known to have participated in this sport and achieved success.
Option D) Kabadi - This option is incorrect because there is no record of Swami Vivekananda participating in kabaddi or winning a first prize and a silver butterfly in this sport.
The correct answer is C) Boxing. Swami Vivekananda won a first prize and a silver butterfly in boxing.