Final answer:
Takht Sri Damdama Sahib is significant because Guru Gobind Singh Ji compiled the full Paath of the Guru Granth Sahib at this site, which solidified it as the eternal Guru of the Sikhs. The correct answer is B).
Step-by-step explanation:
The significance of Takht Sri Damdama Sahib, one of the five Takhts in Sikhism, is associated with Guru Gobind Singh Ji, the tenth Sikh Guru. While several important events are tied to the history of the Sikh Gurus and their contributions, the correct answer regarding Damdama Sahib is B) Guru Gobind Singh Ji got the full Paath of Guru Granth Sahib written here. It was here that Guru Gobind Singh Ji recompiled and authenticated the hymns of the Guru Granth Sahib, adding the compositions of his father, Guru Tegh Bahadur. This effort marked the canonization of the text revered by Sikhs as their eternal Guru. Damdama Sahib is not known for the initiation of the Khalsa, nor was it a site for Guru Nanak Dev Ji's writings or Guru Hargobind Sahib's military headquarters.