At a subduction zone, the subducting plate . A. is always composed of continental lithosphere B. is always composed of oceanic lithosphere C. may be composed of either oceanic or continental lithosphere D. is composed entirely of asthenosphere

Ibelieve this is true m8

It is useful for historians to write narratives so that history can be passed on from their point of view.  think about a story being told in third person, then think about it again being told in first person, by someone who actually experienced the event.