What style of jazz is based on collective improvisation with no set organization?

Most of our knowledge about the Etruscans has come from

a. their tomb sculpture and paintings. b. Egyptian trade records. c. their surviving homes. d. accounts from visiting Greeks.

Who were two of Nahum's contemporaries from the prophets? In other words, what two prophets also lived at the same time as Nahum?

What will be an ideal response?