Why are the iliad and odyssey valuable to historians?

select the best answer from the choices provided.
a) because the iliad and the odyssey were sacred texts, they are exactly preserved as they were in the bronze age.
b) to oral tradition, these epics preserve some memory of greek bronze age society.
c) the epics give us a good idea about conditions under the athenian empire.
d) together they provide an accurate map of the city of troy and the mediterranean world.