This is due soon can someone help with 4 and 5?

How was classical persia's extensive network of roads important to its civilization?

What is zinn's approach to the study of history? what does he suggest occurs when history is told is the story of human progress?

The holocaust of world war ii resulted in a) the nazis effectively used propaganda to gain and hold power in germany. b) ethnic regimes carried out mass devastation. c) deporting all european jews to the island of madagascar. d) the systematic mass slaughter of european jews and and others in nazi concentration camps during world war ii.