Troubadour is a french medieval lyric poet composing & singing in provencal in the 11th & 13th centuries.
most probably the answer is (D) because a civilization generally has a specialization in their own chosen feild like the harrapans were good at weavimg and other arts, they have trade , religion , many scripts have been found of various civilization .. which is the last thing that makes me think that d is the answer .. written language
