It would say that the technique that was discontinued during the swing era was Collective improvisation (option B) This might be because improvisation was connected to Jazz and Free Jazz music. Swing jazz is based on the off-beat or music pulse.
C I think it’s that one not sure about it
Answer:
Deffufa is a unique type of Nubian architecture. This was made from mud-bricks and used for religious structures. There are only three known deffufas in existence today.
Explanation:
Hope this helps I leraned about this last week I pretty sure im right:)...
