That the artiste went about systematically to get traditional _________ back into the mainstream __________ and a textile culture for dance is to be celebrated.

The sentence praises an artiste( a professional singer or dancer) who made an effort to bring traditional elements back into the mainstream, specifically in the context of dance and textile culture. The sentence ends with: “…and a textile culture for dance is to be celebrated.” So the focus is on reviving or integrating traditional cultural elements into a modern dance context. 

The first blank should be filled by a word that refers to traditional and cultural elements, possibly something visual or artistic, and related to textiles.  Of the choices given, only "motif" fits the description. Totems are sacred/ spiritual objects, so this doesn't fit here. Hence, we can say option B is the correct choice here.